monitor/att: Add decoding support for CSIP

monitor/att: Add decoding support for CSIP

This adds decoding support for CSIS attributes:

> ACL Data RX: Handle 3585 flags 0x02 dlen 7
      ATT: Read Request (0x0a) len 2
        Handle: 0x0017 Type: Set Identity Resolving Key (0x2b84)
< ACL Data TX: Handle 3585 flags 0x00 dlen 22
      ATT: Read Response (0x0b) len 17
        Value: 01761fae703ed681f0c50b34155b6434fb
        Handle: 0x0017 Type: Set Identity Resolving Key (0x2b84)
          SIRK: 01761fae703ed681f0c50b34155b6434fb
> ACL Data RX: Handle 3585 flags 0x02 dlen 7
      ATT: Read Request (0x0a) len 2
        Handle: 0x001b Type: Set Member Lock (0x2b86)
< ACL Data TX: Handle 3585 flags 0x00 dlen 6
      ATT: Read Response (0x0b) len 1
        Value: 01
        Handle: 0x001b Type: Set Member Lock (0x2b86)
            Locked (0x01)
> ACL Data RX: Handle 3585 flags 0x02 dlen 7
      ATT: Read Request (0x0a) len 2
        Handle: 0x001e Type: Set Member Rank (0x2b87)
< ACL Data TX: Handle 3585 flags 0x00 dlen 6
      ATT: Read Response (0x0b) len 1
        Value: 01
        Handle: 0x001e Type: Set Member Rank (0x2b87)
            Rank: 0x01