Feature/add find dep to cmake config

[pnoltes]

Updates CelixConfig to include find_dependency if certain targets (bundles) are present.

Update sources files used in cmake config to always specific an extension as Is required by the cmake policy
CMP0115

[codecov-commenter]

Codecov Report

Merging #359 (4384f1b) into master (9479acd) will increase coverage by 0.00%.
The diff coverage is n/a.

❗ Current head 4384f1b differs from pull request most recent head 0df8249. Consider uploading reports for the commit 0df8249 to get more accurate results

@@           Coverage Diff           @@
##           master     #359   +/-   ##
=======================================
  Coverage   71.47%   71.47%           
=======================================
  Files         201      201           
  Lines       34793    34793           
=======================================
+ Hits        24867    24869    +2     
+ Misses       9926     9924    -2     

Impacted Files	Coverage Δ
...n_websocket/v1/src/pubsub_websocket_topic_sender.c	84.35% <0.00%> (+1.11%)	⬆️

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