Pest parser

Add pest parser to parse terms.

changed milestone to %Alpha release

assigned to @aalbert

created branch 3-pest-parser to address this issue

added Doing label

mentioned in merge request !3 (closed)

mentioned in merge request !4 (merged)

added Stuck To review labels and removed Doing label

removed Stuck label

added Doing label and removed To review label

added To review label and removed Doing label

added Doing label and removed To review label

added To review label and removed Doing label

closed with commit bcb0e9fd

closed with merge request !4 (merged)

removed To review label

mentioned in commit bcb0e9fd

added Parser label

mentioned in commit a1aaf675

mentioned in commit 5b52cf01

mentioned in commit 5e1127bd