Add a float array to byte array utility method

[sazzad16]

References:

• How to query HNSW index with float[] #3122
• For vector similarity search, calling HSET with bytes data for the vector of floats needs to be little endian order to make the calculations work in Redis #3127

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.05 ⚠️

Comparison is base (42d3509) 67.21% compared to head (5d20267) 67.16%.

❗ Current head 5d20267 differs from pull request most recent head 7f08ce5. Consider uploading reports for the commit 7f08ce5 to get more accurate results

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Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3374      +/-   ##
============================================
- Coverage     67.21%   67.16%   -0.05%     
+ Complexity     4722     4719       -3     
============================================
  Files           271      271              
  Lines         15255    15258       +3     
  Branches        963      963              
============================================
- Hits          10253    10248       -5     
- Misses         4585     4590       +5     
- Partials        417      420       +3     

Impacted Files	Coverage Δ
...ava/redis/clients/jedis/search/RediSearchUtil.java	86.36% <100.00%> (+2.15%)	⬆️

... and 3 files with indirect coverage changes

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