major refactor

[mathisdrn]

Refactor :

• better architecture, each package have a precise role
• analyse.go now builds model.Base with pointer : SetGenericMetric(), SetBoolMetric(), etc.

Features :

• jsonschema command and venom test
• added GPL v3 to all files

Fix :

• analyse pipeline should now handles nil values found in slice of interface
• countUnique, unique, sample now works together with T comparable

Test:

• added test for new function

Performance :

• improved (about 20%)

Build.yaml :
benchmark are saved bin/coverage_benchmark.txt while test are saved bin/coverage.txt

Possible future enhancements :

• remove need to compute Unique() for stringMetric by passing in MainMetric()
• Request to Support Special File Name '-' for Standard Input Reading feat: pipe input and output with cmd rimo analyse  #10
• Publish benchmark result #5