output finding information as json

[praetorian-thendrickson]

Added a -j flag to output the finding information as JSON. Modified the -s flag to only output the sarif data. This allows for piping into programs like jq without an issue

[/Users/tomis/Desktop/gokart]$ ./gokart scan ../go-test-bench -s  | jq
parse error: Invalid numeric literal at line 1, column 6

now

[/Users/tomis/Desktop/gokart]$ ./gokart scan ../go-test-bench -s  | jq                                         
{                       
  "version": "2.1.0",              
  "$schema": "https://raw.githubusercontent.com/oasis-tcs/sarif-spec/master/Schemata/sarif-schema-2.1.0.json", 
  "runs": [  
...

[/Users/tomis/Desktop/gokart]$ ./gokart scan ../go-test-bench -j | jq                                                                                                                                                         
[                                                                                                                                                                                                                             
  {                                                                                                                                                                                                                           
    "Vulnerable_Function": {                                                                                   
      "SourceCode": "\t\tcommand = exec.Command(\"echo\", userInput)", 
... 

[isp1r0]

This killer. Loving the upgrade for CI/CD and testing.