[Report] Allow multiple authors and multiple categories

[authorjapps]

Currently only one author per scenario is picked up.
Similarly one category per scenario and a superset category "Regression"

AC1:
Allow multiple categories starting with "#"

AC1:
Allow multiple authors starting with "@"

Benefit

If there is a situation to show test results Component wise(e.g. API-SECURITY) and sub-component wise (e.g. OAuth2 or BasicAuth or ``), then this feature will allow to display results in that manner.

• and Similarly stuff Authors.

It should appear something like below:

• Regression(7) <------ Total (but not necessarily sum of all sub categories. There may be some overlaps)
• API-SECURITY(5)
• OAuth2(2)
• BasicAuth(3)
• SSL(5)
• http(1)

Otherwise, fall back to:

• Regression <--- For category
• All <--- For authors

[authorjapps]

Available in 1.3.36 (or later versions) when released