#ifndef VSG_MAX_DEVICES

[nolankramer]

@robertosfield Wdyt about enabling easier configuration of max devices via #ifndef guards? e.g:

#ifndef VSG_MAX_DEVICES
#define VSG_MAX_DEVICES 1
#endif

It would allow users to use VSG without forking if they need to configure this.

Other things like VSG_MAX_INSTRUMENTATION_LEVEL etc could also have the guards.

[robertosfield]

This is configurable via CMake, no need to fork.

The values are compiled into the libraries so the values have to be set duiring compile time.

[nolankramer]

Ah I missed that. Thanks Robert!