New Resource: azurerm_route_map

[neil-yechenwei]

This PR is to support new resource azurerm_route_map.

--- PASS: TestAccRouteMap_basic (2037.04s)
--- PASS: TestAccRouteMap_complete (2114.53s)
--- PASS: TestAccRouteMap_update (2375.27s)
--- PASS: TestAccRouteMap_requiresImport (2588.88s)

[katbyte]

We have a test failure:

------- Stdout: -------
=== RUN   TestAccRouteMap_update
=== PAUSE TestAccRouteMap_update
=== CONT  TestAccRouteMap_update
    testcase.go:110: Step 1/6 error: Error running pre-apply refresh: exit status 1
        
        Error: The name must begin with a letter, end with a letter or underscore, and may contain only letters, underscores, periods or hyphens. "name": "acctestrm-221205173843714849"
        
          with azurerm_route_map.test,
          on terraform_plugin_test.tf line 39, in resource "azurerm_route_map" "test":
          39:   name           = "acctestrm-221205173843714849"
        
--- FAIL: TestAccRouteMap_update (2.97s)
FAIL

[neil-yechenwei]

@katbyte , updated tc. Now all TCs passed.

[neil-yechenwei]

Resolved conflict.

[katbyte]

LGTM 💾

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