Labeling: Flags

Output data for some structured field introducers are defined as bit flags using this format: XSF_xxxx_FLAG_name.

Here is a sample mapping of the ACT SFI:

`Len`	`Type`	`Value`	`Name`	`Description`
`8`	`HEX`	`0009802000000002`	`XSF_SFI_ACT`	`Actions on release`
`3`	`HEX`	`802000`	`XSF_SFI_ACT_ID`
`2`	`HEX`	`0009`	`XSF_ACT_LENGTH`
`1`	`HEX`	`02`	`XSF_ACT_DTYPE`
`1`	`HEX`	`80`	`XSF_ACT_FLAG_SCRATCH`
`1`	`HEX`	`40`	`XSF_ACT_FLAG_REPLACE`
`1`	`HEX`	`20`	`XSF_ACT_FLAG_INIT`
`1`	`HEX`	`10`	`XSF_ACT_FLAG_ERASE`
`1`	`HEX`	`08`	`XSF_ACT_FLAG_RETURN`
`1`	`HEX`	`04`	`XSF_ACT_FLAG_NOTIFY`