Compiler define of module.json's name field

[jacobrosenthal]

Much to my happy surprise, I recently found the module.json version string in the yotta.

#define YOTTA_BLE_GAPBUTTON_VERSION_STRING "0.0.0"
#define YOTTA_BLE_GAPBUTTON_VERSION_MAJOR 0
#define YOTTA_BLE_GAPBUTTON_VERSION_MINOR 0
#define YOTTA_BLE_GAPBUTTON_VERSION_PATCH 0

Im hoping to put compile this into my code for obvious reporting and troubleshooting reasons. However Id like to use it from within packages/targets/etc that wont know the name of the module. How about generating #define YOTTA_NAME BLE_GAPBUTTON?

[jacobrosenthal]

I see the only reason I have those defines is because my top level module is one of a set of all modules which are included. See my PR which sadly duplicates those defines, but theres no way to dig them out of the existing defines