Port package names in CMake to gz

[adityapande-1995]

Signed-off-by: Aditya [email protected]

This makes the find_package() and linking macros use the gz prefixed package names.

[adityapande-1995]

Locally, the build process crashes due to Eigen :

Starting >>> lrauv_description
Starting >>> lrauv_ignition_plugins
Finished <<< lrauv_description [0.77s]
--- stderr: lrauv_ignition_plugins
** WARNING ** io features related to openni will be disabled
** WARNING ** io features related to openni2 will be disabled
** WARNING ** io features related to pcap will be disabled
** WARNING ** io features related to png will be disabled
** WARNING ** io features related to libusb-1.0 will be disabled
** WARNING ** visualization features related to openni will be disabled
** WARNING ** visualization features related to openni2 will be disabled
** WARNING ** apps features related to openni will be disabled
/home/developer/lrauv_ws/src/lrauv/lrauv_ignition_plugins/src/HydrodynamicsPlugin.cc:25:10: fatal error: Eigen/Eigen: No such file or directory
 #include <Eigen/Eigen>
          ^~~~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/HydrodynamicsPlugin.dir/build.make:63: CMakeFiles/HydrodynamicsPlugin.dir/src/HydrodynamicsPlugin.cc.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:618: CMakeFiles/HydrodynamicsPlugin.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:141: all] Error 2
---
Failed   <<< lrauv_ignition_plugins [13.0s, exited with code 2]

and the CI is failing to due apt install somehow (?) looking into it.

[playertr]

I got the same Eigen error as you, @adityapande-1995 . I followed this advice to symlink Eigen to eigen3, but it seems hacky.

[adityapande-1995]

I am able to build just this lrauv repo locally now (excluding lrauv-app) , with a garden installation from source and a sudo apt-get install python3-ignition-math7

[playertr]

These changes look good to me, and I was able to build against Ben's PR in lrauv-application.

I guess the next step might be to move from lrauv_ignition_plugins to lrauv_gz_plugins eventually, but that's outside the scope of this PR.

[braanan]

Works for me. Unless @hidmic has further comments, let's get this PR merged and I'll rebuild the docker image for CI with the lrauv-app changes

[hidmic]

No comments, let's get this in!