Add domain model (#71)

* initial commit for data model classes
initially generated by Claude 3.5 Sonnet, but significant corrections required and will still be required
this is just to get it set in a branch so I can get back to other work

* modified 12LeadEcg to TwelveLeadEcg to get through black
domain models for all known IODs and Sequences in DICOM 2024, generated based on innolitics standard/*.json files

* added public elements dynamically to datadict that are in DICOM Standard 2024 that aren't yet in pydicom

.vscode/settings.json

@@ -3,13 +3,17 @@
         "acse",
         "addl",
         "argparser",
+        "autosequence",
         "basescp",
+        "boli",
+        "brachy",
         "cfind",
         "cmove",
         "dataelem",
         "dcmdump",
         "DCMTK",
         "ddress",
+        "Deidentification",
         "dests",
         "dimse",
         "dsutils",
@@ -19,14 +23,20 @@
         "fdir",
         "findscu",
         "fpaths",
+        "fractiongroup",
         "globalsubscriber",
         "HHMM",
         "HHMMSS",
         "ilename",
         "impac",
+        "ionbeam",
+        "ioncontrolpointdelivery",
         "IPDW",
         "irectory",
+        "isocenter",
         "Mddhhmm",
+        "meterset",
+        "Metersets",
         "mktime",
         "MOSAIQ",
         "movescu",
@@ -38,6 +48,7 @@
         "nget",
         "nset",
         "nsetscu",
+        "patientsetup",
         "popd",
         "PPVS",
         "ppvsscp",
@@ -47,11 +58,14 @@
         "qtreewidgetitem",
         "queryfile",
         "repval",
+        "rtiontolerancetable",
         "rtss",
         "sessionmaker",
         "sobp",
         "storescp",
         "storescu",
+        "treatmentmachine",
+        "treatmentsessionionbeam",
         "tsyntax",
         "UPSC",
         "upsdb",