DB Migration - Step 1

- Export and Import V3

AccountCategoryEntry:
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- Color changed to a number of a color (Not brush)
- Added IconID
- Added ParentName - For categories
- Constructions changes: now they are more formal.

Renamed Methods for more accurate descriptions
- GetEntryByName for list of CategoryAccountEntry
- GetTransactionsInfoGroupingCategoryOrAccount in DBInternal
- LoadDefaultCategoriesAccounts in DBInternal

Transaction:
Added budget property

Current state:
DB would not load because of inconsistency