add time stamp and time stamp alignment (#570)

- add the following classes and individuals: 
  - class `time stamp`: _A time stamp is a zero-dimensional temporal region 
    that is used to describe a time step._
  - class `time stamp alignment`: _A time stamp alignment is a data descriptor 
    that indicates the position of a time stamp in a time step._
  - individuals `start / middle / end alignment`: _A start / middle / end 
    alignment is a time stamp alignment indicating that the time stamp marks 
    the start / middle / end of the time step._ (alternative terms: left / 
    centre / right alignment)
    The individuals are instances of `time stamp alignment`.

- replace the relations for `time step`, which where `has part some start 
  time`, `has part some end time` and `has part some duration` with `(has part 
  some start time and has part some ending time) or (has part some time stamp 
  and has part some time stamp alignment and has part some duration)`

Author: sfluegel05

CHANGELOG.md

@@ -31,6 +31,7 @@ Here is a template for new release sections
 - chemical reaction and subclasses (#568)
 - demand (#569)
 - consumption (#569)
+- time stamp and time stamp alignment (#570)
 
 ### Changed
 - move subclasses of has participant (#530)

src/ontology/edits/oeo-model.omn

@@ -1065,13 +1065,16 @@ Class: OEO_00030033
         <http://purl.obolibrary.org/obo/IAO_0000115> "A time step is a one-dimensional temporal region that has a start time and an endtime and thus a finite duration.",
         <http://purl.obolibrary.org/obo/IAO_0000233> "issue: https://github.com/OpenEnergyPlatform/ontology/issues/267
 pull request: https://github.com/OpenEnergyPlatform/ontology/pull/538",
+        <http://purl.obolibrary.org/obo/IAO_0000233> "issue: https://github.com/OpenEnergyPlatform/ontology/issues/267
+pull request: https://github.com/OpenEnergyPlatform/ontology/pull/570",
         rdfs:label "time step"
 
     SubClassOf: 
         <http://purl.obolibrary.org/obo/BFO_0000038>,
-        <http://purl.obolibrary.org/obo/BFO_0000051> some OEO_00030031,
-        <http://purl.obolibrary.org/obo/BFO_0000051> some OEO_00030032,
-        <http://purl.obolibrary.org/obo/BFO_0000051> some OEO_00030035
+        ((<http://purl.obolibrary.org/obo/BFO_0000051> some OEO_00030031)
+         and (<http://purl.obolibrary.org/obo/BFO_0000051> some OEO_00030032)) or ((<http://purl.obolibrary.org/obo/BFO_0000051> some OEO_00030035)
+         and (<http://purl.obolibrary.org/obo/BFO_0000051> some OEO_00140043)
+         and (<http://purl.obolibrary.org/obo/BFO_0000051> some OEO_00140044))
 
 
 Class: OEO_00030034
@@ -1153,6 +1156,30 @@ pull request: https://github.com/OpenEnergyPlatform/ontology/pull/565",
         OEO_00140024
 
 
+Class: OEO_00140043
+
+    Annotations: 
+        <http://purl.obolibrary.org/obo/IAO_0000115> "A time stamp is a zero-dimensional temporal region that is used to describe a time step.",
+        <http://purl.obolibrary.org/obo/IAO_0000233> "issue: https://github.com/OpenEnergyPlatform/ontology/issues/267
+pull request: https://github.com/OpenEnergyPlatform/ontology/pull/570",
+        rdfs:label "time stamp"@en
+    
+    SubClassOf: 
+        <http://purl.obolibrary.org/obo/BFO_0000148>
+    
+    
+Class: OEO_00140044
+
+    Annotations: 
+        <http://purl.obolibrary.org/obo/IAO_0000115> "A time stamp alignment is a data descriptor that indicates the position of a time stamp in a time step.",
+        <http://purl.obolibrary.org/obo/IAO_0000233> "issue: https://github.com/OpenEnergyPlatform/ontology/issues/267
+pull request: https://github.com/OpenEnergyPlatform/ontology/pull/570",
+        rdfs:label "time stamp alignment"@en
+    
+    SubClassOf: 
+        OEO_00000119
+    
+    
 Individual: OEO_00000049
 
     Annotations: 
@@ -1432,3 +1459,42 @@ Individual: OEO_00000451
         OEO_00000120
 
 
+Individual: OEO_00140045
+
+    Annotations: 
+        <http://purl.obolibrary.org/obo/IAO_0000115> "A start alignment is a time stamp alignment indicating that the time stamp marks the start of the time step.",
+        <http://purl.obolibrary.org/obo/IAO_0000118> "left alignment",
+        <http://purl.obolibrary.org/obo/IAO_0000233> "issue: https://github.com/OpenEnergyPlatform/ontology/issues/267
+pull request: https://github.com/OpenEnergyPlatform/ontology/pull/570",
+        rdfs:label "start alignment"@en
+    
+    Types: 
+        OEO_00140044
+    
+    
+Individual: OEO_00140046
+
+    Annotations: 
+        <http://purl.obolibrary.org/obo/IAO_0000115> "A middle alignment is a time stamp alignment indicating that the time stamp marks the middle of the time step.",
+        <http://purl.obolibrary.org/obo/IAO_0000118> "centre alignment",
+        <http://purl.obolibrary.org/obo/IAO_0000233> "issue: https://github.com/OpenEnergyPlatform/ontology/issues/267
+pull request: https://github.com/OpenEnergyPlatform/ontology/pull/570",
+        rdfs:label "middle alignment"@en
+    
+    Types: 
+        OEO_00140044
+    
+    
+Individual: OEO_00140047
+
+    Annotations: 
+        <http://purl.obolibrary.org/obo/IAO_0000115> "An end alignment is a time stamp alignment indicating that the time stamp marks the end of the time step.",
+        <http://purl.obolibrary.org/obo/IAO_0000118> "right alignment",
+        <http://purl.obolibrary.org/obo/IAO_0000233> "issue: https://github.com/OpenEnergyPlatform/ontology/issues/267
+pull request: https://github.com/OpenEnergyPlatform/ontology/pull/570",
+        rdfs:label "end alignment"@en
+    
+    Types: 
+        OEO_00140044
+    
+