component filters

[dkrupp]

A source component is a named collection of directories specified as directory filter (or multiple directory filters). For component definition use the skip file format https://github.com/Ericsson/codechecker/blob/master/docs/user_guide.md#skip-file

• Components should be possible to be defined/removed from the command line
• A new page will be created where components can be added/modified/deleted
• A new "component" filter criteria will be added to the Report filter page
• A new table will be introduced to store components

Example:
we have these directories

/src/prog/sub1
/src/prog/sub2
/src/prog/sub3

component1:

+/src/prog/* //LIKE "/src/prog/%"
-/src/prog/sub1/* //NOT LIKE "/src/prog/sub1/%"

so component1 matches to /src/prog/sub2 and /src/prog/sub3

component2:

+/src/prog/* //LIKE "/src/prog%"
-/src/prog/sub2/* //NOT LIKE "*/src/prog/sub2%"
-/src/prog/sub3/* //NOT LIKE "*/src/prog/sub3%"

if component1,component2 is checked

(component1) OR (component2)
component1: LIKE "/src/prog%" AND  NOT LIKE "/src/prog/sub1%"
component2:: LIKE "*/src/prog%" AND  NOT LIKE "*/src/prog/sub2%" AND  NOT LIKE "*/src/prog/sub3%"