Add a By module name upper lever interface

v0.2.0

Add GMT description

No longer 0.4 and no need for Compat

v0.1.0

Remove left over Compat calls.

Sync with latest GMT5.4 changes

Sync with GMT_PALETTE struct changes in GMT5.4

Fixes and updates to keep in sync with GMT lib updates

It is now possible to call GMT with gmt("module","options",data)