* Make DataDictionary ordered by key (symbol) * Cache DataDictionary sorted items * Minor tests fixes * Minor changes * Minor changes
- To simplify stub generation, merge PythonSlice into Slice, following existing pattern too, see QCAlgorithm.Python.cs - Minor sintax fixes in example python algorithms
* Revert parts of GH PR 8395 to fix 0DTE index options * Add regression algorithms * Cleanup * Cleanup