Tasks/standardize tokens

[WillStrohl]

Related to Issue

Fixes #269
Partially addresses #273

Description

Streamlined the tokens to be consistent across all projects and extension types.
Organized most prompts to be easier to use.
Fixed several minor build, SqlDataProvider, versioning, and other related typos.
Made the manifest metadata more consistent across projects.
Made tokens less ambiguous and easier to read/use.
Added universal tokens to all templates (e.g., currentDate, currentYear, extensionType, etc.).
Updated the gitignore to ignore artifacts from Visual Studio & Visual Studio Code.

How Has This Been Tested?

Ran it over and over locally.
Installed each extension locally, after verifying they install using EVS.

Screenshots (if appropriate):

N/A

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.