Remove max modules

[adamdossa]

Fix #260

@VictorVicente to make corresponding CLI changes

Uses an internal function for verifyTransfer rather than signature matching on msg.data

Removes MAX_MODULES and changes the onlyModule modifier to be constant time.

Modules can be:
archived: makes a module not valid for the purposes of onlyModule. Can be unarchived
unarchived: reverts archive
remove: permanently remove module (can't be re-added)

NB: We still have a dependency on the number of TM modules attached as we loop over these in verifyTransfer.

[pabloruiz55]

Left a few small comments. Otherwise, looks good.
Only wondering if it we should really allow them to remove a module vs only just allowing them to archive them

[adamdossa]

Thanks @satyamakgec @pabloruiz55 - have resolved comments.