config file changes for terrascan server

[patilpankaj212]

1. fix issue with global config
2. make changes in server code to remove reading config file
3. unit tests

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Merging #780 (f24ad33) into master (01c8d78) will increase coverage by 1.11%.
The diff coverage is 60.71%.

@@            Coverage Diff             @@
##           master     #780      +/-   ##
==========================================
+ Coverage   73.78%   74.90%   +1.11%     
==========================================
  Files         110      110              
  Lines        3285     3300      +15     
==========================================
+ Hits         2424     2472      +48     
+ Misses        677      644      -33     
  Partials      184      184              

Impacted Files	Coverage Δ
pkg/cli/server.go	50.00% <0.00%> (ø)
pkg/http-server/start.go	0.00% <0.00%> (ø)
pkg/http-server/webhook-scan-logs.go	0.00% <0.00%> (ø)
pkg/config/global.go	79.45% <61.90%> (-7.09%)	⬇️
pkg/http-server/handler.go	100.00% <100.00%> (ø)
pkg/http-server/routes.go	100.00% <100.00%> (ø)
pkg/http-server/webhook-scan.go	70.00% <100.00%> (ø)
pkg/k8s/admission-webhook/validating-webhook.go	83.44% <100.00%> (+21.44%)	⬆️
pkg/k8s/dblogs/webhook-scan-logger.go	78.18% <0.00%> (+7.27%)	⬆️

[devang-gaur]

Is it a refactor? or a change in config? I don't see any changes to the TerrascanConfig struct. Its probably a refactor as per mey understanding.

@patilpankaj212