Added rendering of asciimath in submissions

core/models/submission_type.py

frontend/package.json

frontend/public/index.html

.../src/components/submission_notes/SubmissionCorrection.vue

...ponents/submission_notes/base/BaseAnnotatedSubmission.vue

...d/src/components/submission_notes/base/SubmissionLine.vue

...bmission_notes/toolbars/AnnotatedSubmissionTopToolbar.vue

frontend/src/components/submission_type/SubmissionType.vue

frontend/src/models.ts

frontend/src/store/modules/submission-notes.ts