Added the http.get and http.post functions with query params, headers, form, bodies as optional params (depending on GET vs POST)

[Cictrone]

What type of PR is this?

/kind feature
/kind eldritch-function

What this PR does / why we need it:

It will be useful to issue HTTP GET requests from imix.

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (0892744) 71.35% compared to head (420b1a2) 72.14%.

Files	Patch %	Lines
implants/lib/eldritch/src/http/get_impl.rs	99.37%	1 Missing ⚠️
implants/lib/eldritch/src/http/post_impl.rs	99.42%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #636      +/-   ##
==========================================
+ Coverage   71.35%   72.14%   +0.79%     
==========================================
  Files         172      174       +2     
  Lines       11598    11935     +337     
==========================================
+ Hits         8276     8611     +335     
- Misses       3108     3110       +2     
  Partials      214      214              

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[KCarretto]

Minor changes