colles report with graphs is onboard

Colles report with graphics is on board

-> added method to detect if a field plugin allows left position for the content of the questiona
-> added method to detect if a item plugin uses form page (almost each plugin lives in a form page but not page break)
-> changed forceediting to riskyediting to make it simpler to understand which variable it is referring to
-> added 'mod/survey:accessownreports' capability because colles report is also available to students but for their own data only
-> moved Navigation block > Survey settings in the right position (see MDL-41818)