fix br

[makhin]

Sorry. Thanks for review.

[sjh37]

This PR does the following:

1. UsePascalCaseForEnumMembers setting — new bool to control PascalCase for enum member names independently of UsePascalCase.
2. EnumNameField / EnumValueField settings — configurable column names for enum source tables (defaults: "Name" / "Id").
3. UpdateEnum / UpdateEnumMember callbacks — new Action<> hooks in Settings so users can customize enums/enum members before generation (analogous to UpdateColumn).
4. Enumeration filters — EnumerationTableFilters and EnumerationSchemaFilters added to FilterSettings, with AddDefaultEnumerationTableFilters() / AddDefaultEnumerationSchemaFilters() and corresponding filter classes (EnumerationTableFilter, EnumerationSchemaFilter).
5. VSIX target framework bump — .csproj updated from v4.5 → v4.8.
6. .ttinclude updated — all the above reflected in the generated file.

This adds useful enum customisation hooks that don't exist today. The main concerns before merging would be:

• The .ttinclude was edited directly (violates the build process — it should be regenerated from Generator/).
• It may not have corresponding changes in Generator/ source files.
• No tests included.

It's not merge-ready as-is, but the feature idea has value.
Leaving open