Re-add firedrill sample

[jshcodes]

Firedrill (Sample)

This update adds a new sample Firedrill, that demonstrates creating and modifying Firewall rule groups and rules.

• Code sample

Unit test coverage

NOT REQUIRED FOR SAMPLE SUBMISSIONS

Bandit analysis

[main]	INFO	running on Python 3.9.17
Run started:2024-03-27 20:47:41.497589

Test results:
	No issues identified.

Code scanned:
	Total lines of code: 236
	Total lines skipped (#nosec): 0

Run metrics:
	Total issues (by severity):
		Undefined: 0.0
		Low: 0.0
		Medium: 0.0
		High: 0.0
	Total issues (by confidence):
		Undefined: 0.0
		Low: 0.0
		Medium: 0.0
		High: 0.0
Files skipped (0):

Other

• Added: Firedrill sample
  • samples/firewall_management/firedrill.py