Feature Flag for Caching /users, clear cache on POST

[unicornsleuth]

Changes cache key from "users" to "users:all" Whenever a POST is made to /users, the users:all cache will be deleted Adds Feature Flag to enable/disable caching

[unicornsleuth]

Text from PR: What this PR Does:

• closes #204
• minor edits to /automation/alert and /automation/vnet files
• changes /Automation to /automation
• adds CACHE_TOGGLE variable to determine if caching will be available

To Test:

• (1) in VSCode add the line "CACHE_TOGGLE": "On" to functions/local.settings.json

• (2) under the "Run/Debug" tab in VSCode, run the functions

• (3) go to Postman, c/p the endpoint for /users that VSCode will display on the terminal

• (4) run a GET

  • you should see over 1000 results in Postman
  • VSCode terminal should display the following:
  • 
  • (if not, skip to step 6)

• (5) run another GET

  • VSCode terminal should display the following:
  • 

• (6) run a POST with a body like so:

  {
  "firstName": "First",
   "lastName": "Last",
  "email": "email@email.com"
  }

  • VSCode terminal should display the following:
  • 

• (7) run (yet) another GET

  • VSCode terminal should display message from (4) again

• (8) Change the CACHE_TOGGLE value in /functions/local.settings.json to "Off"

• (9) run a GET

  • VSCode terminal should display the following:
  • 

• (10) run a POST with a body like in (6)

  • VSCode terminal should display the following:
  • 
  • (11) run a last GET
  • VSCode terminal should display the same as in (9)

[unicornsleuth]

Researching, coding, testing, & writing PR: 4 hrs 30 mins