Build Open MCT with Terser plugin to reduce library size.

[akhenry]

Is your feature request related to a problem? Please describe.
Experimentation has shown that the Terser plugin may significantly reduce the size of our built library.

We should also consider using Terser in some of our other projects (viper-openmct, openmct-yamcs, openmct-mmgis).

[ozyx]

So as it turns out, Webpack is already using TerserPlugin and applying sensible defaults (that net us the lowest bundle size without doing crazy things).

[ozyx]

Testing Instructions

• Clone a fresh copy of openmct
• git checkout 715a44864e92e97f982a21c80522dc2f07f3d687^1
• npm i; npm pack
• Move the generated *.tgz archive to another folder (outside of openmct repo)
• git checkout 715a44864e92e97f982a21c80522dc2f07f3d687
• npm run clean; npm i; npm pack
• compare packed / unpacked space
• Manual smoke test of basic usage

[davetsay]

verified. packed goes from 9747535 to 9260085.