Improve Application Security Groups

- add rule examples
- icmp type & code are integers
- tcp/udp port is now ports

[#73594384]

Signed-off-by: James Myers <jmyers@pivotallabs.com>
Update api checksum

Signed-off-by: James Myers <jmyers@pivotallabs.com>
Add unique validation for names on AppSecurityGroups

[#73737522]