Add support for azurerm_function_app (and misc. housekeeping) (Azure#36)

* Add support for azurerm_function_app

Adds support for the azurerm_function_app resource type.

* Fix resources with inconsistent naming conventions

Fixes the naming convention used in the bot_channel_email and
container_group resources, converting them to lower_snake_case.

* Fix resource template formatting

Fixes the resource template formatting to align with the output of
terraform fmt, so the files don't have to be formatted afterward.
Also noticed a diff between the provider in the template and the
Terraform files, so I merged in pull request Azure#35 to fix.

* Sort all resources alphabetically

Sorts the resource definitions in both JSON documents alphabetically,
and updates the build script to alphabetize the output Terraform files.

README.md

@@ -130,7 +130,7 @@ postgresql_server = {
 | batch\_application | n/a |
 | batch\_certificate | n/a |
 | batch\_pool | n/a |
-| bot\_channel\_Email | n/a |
+| bot\_channel\_email | n/a |
 | bot\_channel\_directline | n/a |
 | bot\_channel\_ms\_teams | n/a |
 | bot\_channel\_slack | n/a |
@@ -140,7 +140,7 @@ postgresql_server = {
 | cdn\_endpoint | n/a |
 | cdn\_profile | n/a |
 | cognitive\_account | n/a |
-| containerGroups | n/a |
+| container\_group | n/a |
 | container\_registry | n/a |
 | container\_registry\_webhook | n/a |
 | cosmosdb\_account | n/a |
@@ -200,6 +200,7 @@ postgresql_server = {
 | firewall\_network\_rule\_collection | n/a |
 | frontdoor | n/a |
 | frontdoor\_firewall\_policy | n/a |
+| function\_app | n/a |
 | hdinsight\_hadoop\_cluster | n/a |
 | hdinsight\_hbase\_cluster | n/a |
 | hdinsight\_interactive\_query\_cluster | n/a |

main.go

@@ -6,10 +6,11 @@ import (
 	"log"
 	"os"
 	"regexp"
+	"sort"
 	"text/template"
 )
 
-// Resource definityion for the package
+// Resource definition for the package
 type Resource struct {
 	Name   string  `json:"name"`
 	Length *Length `json:"length,omitempty"`
@@ -67,6 +68,11 @@ func main() {
 	}
 	data = append(data, dataUndocumented...)
 
+	// Sort the documented and undocumented resources alphabetically
+	sort.Slice(data, func(i, j int) bool {
+		return data[i].Name < data[j].Name
+	})
+
 	mainFile, err := os.OpenFile("main.tf", os.O_TRUNC|os.O_CREATE|os.O_WRONLY, 0644)
 	if err != nil {
 		log.Fatal(err)