Update the default issue template (#3665)
Update the default issue template (#3665)

This is the template that is filled in when someone clicks "Open a regular issue". Updated to use some of the language we use in the bug template, as well as link back to the other templates. See https://github.com/terraform-providers/terraform-provider-google/issues/3658#issuecomment-494150777
terraform-providers/terraform-provider-google,hashicorp/terraform-provider-google,ubschmidt2/terraform-provider-google,terraform-providers/terraform-provider-google,terraform-providers/terraform-provider-google,terraform-providers/terraform-provider-google,hashicorp/terraform-provider-google,hashicorp/terraform-provider-google,ubschmidt2/terraform-provider-google,ubschmidt2/terraform-provider-google,ubschmidt2/terraform-provider-google,terraform-providers/terraform-provider-google,hashicorp/terraform-provider-google