Update glossary with additional terms

[dorothyyeager]

While working on updating the glossary to add legal terms ( #1157 ) , it turned out that a few of the definitions did not have Commission-approved or OGC-reviewed definitions. We are securing that review now, so this issue is to add those terms to the glossary once their definitions are available to add.

Completion criteria:

• OGC reviews terms
• Update the code to add in the new definitions
• Update the pages to add the links to the new terms in the glossary

[dorothyyeager]

Just wanted to note this issue: 18F/fec-style#760 Adding the links to the citations can be done when adding the new code for the new entries. As of today, OGC is still reviewing.

[dorothyyeager]

Just received OGC's comments. We may debate a couple of them, but by and large we will be able to add in the ones they just reviewed, as well as the links to the citations.

[dorothyyeager]

A note for this issue - it will need to continue into future sprints as the code for the terms above will not be in the next release (but will be in the release after that). In the meantime, I'm getting it ready and after the next release comes out, will be able to update pages for the terms mentioned in the previous issue #1157

[dorothyyeager]

Status update for this issue. The coding requested in 18F/fec-style#760 has been done, approved and will be added into next release. Meanwhile, the new terms are being coded on all the help pages. It's a manual task and may go into the next sprint.