TSK-2774 Add initial unit test for C receiver

[njthykkathu]

<!—Unit Test for Visibility Receive -->

Description:

A single unit test running for vis receive covering some aspect of the API • Creates a mock SPEAD packet in a memory block with three items and pass it to the stream_decode. • Creates the receiver with a single stream and a single buffer. • Pulls the pointer to the first stream out of the receiver and passes that to stream_decode with the mock (in memory) packet

Testing instructions:

To run the unit test go to following directory sip/science_pipeline_workflows/ingest_visibilities/recv_c and run the following commands

mkdir build
cd build
cmake ..
make
ctest

To run the test manually from the build directory, use the following command

./test/recv_test

Types of changes

• [ ] Bug fix (non-breaking change that fixes an issue)
• [x] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ ] The code follows the code style of this project.
• [ ] The changes require a documentation update.
• [x] Documentation has been updated accordingly.
• [ ] Tests cover all changes in this PR.
• [ ] All new and existing tests passed.

[codecov[bot]]

Codecov Report

Merging #96 into master will increase coverage by 0.07%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #96      +/-   ##
==========================================
+ Coverage   84.04%   84.11%   +0.07%     
==========================================
  Files          61       61              
  Lines        2846     2846              
  Branches      237      237              
==========================================
+ Hits         2392     2394       +2     
+ Misses        402      401       -1     
+ Partials       52       51       -1

Impacted Files	Coverage Δ
...tion_db/sip_config_db/utils/generate_sbi_config.py	100% <0%> (+2.77%)	:arrow_up:

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