[Add/Fix/Apply/Edit] Naming & Coding Styles

[cschuchardt88]

Change Log

• Added fixes to code that analyzers broke; to keep tests working and unchanged.
• Fixed errors in the .editorconfig.
• Applied all coding styles.
• Upgraded project packages and libraries.
• Added new rules to coding style in .editorconfig file.
• edited Directory.Build.props in src folder.
• Added custom Directory.Build.props file in tests folder.

How Has This Been Tested?

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[cschuchardt88]

Test and review please. @shargon @Jim8y @vncoelho @superboyiii

[cschuchardt88]

See #3214, #3215, #3216, #3217, #3218