Add Network Management ConnectivityTest resource

[emilymye]

Release Note Template for Downstream PRs (will be copied)

`google_network_management_connectivity_test`

Also:

• Added a new override to MMv1 for the name of the resource in the filename only .
  • Prevent resource file from ending in "test" and treated as a Go test (_test.go pattern) while still keeping the name of the resource short

[modular-magician]

Hi! I'm the modular magician. Your PR hasn't generated any diffs, but I'll let you know if a future commit does.

[modular-magician]

Hi! I'm the modular magician. Your PR hasn't generated any diffs, but I'll let you know if a future commit does.

[modular-magician]

Hi! I'm the modular magician. Your PR hasn't generated any diffs, but I'll let you know if a future commit does.

[modular-magician]

Hi! I'm the modular magician. Your PR hasn't generated any diffs, but I'll let you know if a future commit does.

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 9 files changed, 1748 insertions(+), 2 deletions(-))
Terraform Beta: Diff ( 9 files changed, 1748 insertions(+), 2 deletions(-))
TF Conversion: Diff ( 2 files changed, 269 insertions(+))
TF OiCS: Diff ( 8 files changed, 301 insertions(+))

[c2thorn]

One questionable resource description, but overall looks good!

[c2thorn]

Boo!

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 9 files changed, 1755 insertions(+), 2 deletions(-))
Terraform Beta: Diff ( 9 files changed, 1755 insertions(+), 2 deletions(-))
TF Conversion: Diff ( 2 files changed, 269 insertions(+))
TF OiCS: Diff ( 8 files changed, 301 insertions(+))