swri_transform_util: incompatible with PROJ >=6

[lopsided98]

Attempting to build swri_transform_util with PROJ 6 fails with the following error:

In file included from /build/marti_common-release-release-melodic-swri_transform_util-2.12.0-1/include/swri_transform_util/utm_util.h:38,
                 from /build/marti_common-release-release-melodic-swri_transform_util-2.12.0-1/include/swri_transform_util/utm_transformer.h:42,
                 from /build/marti_common-release-release-melodic-swri_transform_util-2.12.0-1/src/transform_manager.cpp:35:
/nix/store/j7w4f4hylfxijbdqdyxyljvys26fkn7w-proj-dev/include/proj_api.h:37:2: error: #error 'To use the proj_api.h you must define the macro ACCEPT_USE_OF_DEPRECATED_PROJ_API_H'
   37 | #error 'To use the proj_api.h you must define the macro ACCEPT_USE_OF_DEPRECATED_PROJ_API_H'
      |  ^~~~~

An obvious temporary solution is just to define that macro, but the recently released PROJ 7 removes the deprecated API altogether. This package would need to be modified to use the new API to support PROJ 7.

[danthony06]

Looks like #581 addressed this.