Adding to the report a formatted table read from json file

[riffard]

I added a new function to create a table from a json file.

Here is a json file sample:

{
  "table_header": {"var": "Variable", "test_value": "KS test value", "test_status": "Passing"}
  , "table_content": {
      "Single Scatter s1Area_phd": {"var": "Single Scatter s1Area_phd", "test_value": 1.0, "test_status": true}
     , "Single Scatter s2Area_phd": {"var": "Single Scatter s2Area_phd", "test_value": 1.0, "test_status": true}
     , "Single Scatter correctedS1Area_phd": {"var": "Single Scatter correctedS1Area_phd", "test_value": 1.0, "test_status": true}
     , "Single Scatter correctedS2Area_phd": {"var": "Single Scatter correctedS2Area_phd", "test_value": 1.0, "test_status": true}}
}