Fix all dryRun errors and change response format

[Revolyssup]

Notes for Reviewers

This PR fixes all dryRunError issues and improves on responses.
Examples are attached below: (success field must be used by clients to see if they need to check error or component)

1. On failure of dry run:

2. On success of dry run returning a service/component that would be deployed:

The response encapsulates:
{
"component-name":{
"contextID":{
RESPONSE
}
}

}
Signed commits

• Yes, I signed my commits.

[codecov-commenter]

Codecov Report

Base: 16.48% // Head: 16.44% // Decreases project coverage by -0.05% ⚠️

Coverage data is based on head (007214f) compared to base (2acaeed).
Patch coverage: 0.00% of modified lines in pull request are covered.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7149      +/-   ##
==========================================
- Coverage   16.48%   16.44%   -0.05%     
==========================================
  Files         118      118              
  Lines       16241    16281      +40     
==========================================
  Hits         2677     2677              
- Misses      13080    13120      +40     
  Partials      484      484              

Flag	Coverage Δ
e2etests	∅ <ø> (?)
gointegrationtests	5.68% <0.00%> (-0.02%)	⬇️
unittests	12.24% <0.00%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
server/handlers/component_handler.go	0.00% <0.00%> (ø)
server/handlers/oam_handler.go	0.00% <0.00%> (ø)
server/models/pattern/stages/dry_run.go	0.00% <ø> (ø)
server/models/pattern/stages/validate.go	0.00% <0.00%> (ø)

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[leecalcote]

Contributor docs? or API docs?

[leecalcote]

Thanks for adding a diagram in the Meshery Architecture deck.