Support multiple settings being defined in `*-commands.csv`

[howard-e]

Preview Tests

Address #1002.

Note: Created #1126 to test the changes on tests/alert/data/jaws-commands.csv (these are not meant to replicate real world defined settings or scenarios):

• Alert review page showing that the JAWS command has an additional speechRateIncrease and commentAnnouncementOn setting. Also added a new Enter + virtualCursor + commentAnnouncementOn command
• Alert test page for JAWS commands also accounting for the additional settings

Note2: This work should NOT be merged until a supporting PR is included on w3c/aria-at-app as the resulting test format output is being changed to have an additionalSettings property.

[howard-e]

cc @mcking65