feature: Update Reactive Generator for performance

[ChrisPulman]

What kind of change does this PR introduce?

update Fixes #96

What is the current behavior?

Using Syntax Code generation

What is the new behavior?

Update TestHelper to use a single Generic Type to simplify usage Add starter code to test IViewFor generator Use Code Analysis 4.6.0 Update Reactive Generator for performance Remove IsExternalInit

What might this PR break?

The usable generated code has not changed however the file names produced are shortened

Please check if the PR fulfills these requirements

• [x] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)

Other information:

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