* Simplify nx config (no point separately caching es and js builds - they both need to be done for any code changes). Fix some no-op type definitions i.e. X extends any, and enforce templated property types as having to extend GeoJsonProperties throughout.
* Upgrade typescript. Had to update topojson-* type defs to avoid the P = GeoJsonProperties problem in geojson-rbush. Also fix a couple of floating point precision related issues that eslint now apparently catches!
* Retire tslint.
* Upgrade eslint and prettier. Add minimal prettier config (defaults have changed) to avoid widespread, minor formatting changes (trailing commas mostly).
* Upgrading to newest @types/node for the typescript version we currently use (3.8.3). https://www.npmjs.com/package/@types/node?activeTab=versions
* Big update to lerna to address security vulnerabilities. bootstrap command no longer required. Seems to build and test ok. May need some tweaking. Will add build caching at a later date.
* Updating documentation (the NPM library) to address security vulnerabilities. Had to wrap body of script so as be async, though otherwise unchanged.
* Updating es-check to address security vulnerabilities.
* Updating tape library to address security vulnerabilities.
* Add lerna caching (via nx). Simplistic setup so will need some tweaking. Remove redundant packages setting from lerna.json (will default to packages setting in package.json instead). Have to add --npm-path to all npm-run-all calls so that lerna doesn't accidentally end up being used as the npm binary. https://github.com/mysticatea/npm-run-all/issues/218 and https://github.com/lerna/lerna/issues/1842 have more details.
* Missed a couple of carats in package.json dependency specs.
* Also need to commit a new yarn.lock file to reflect version spec changes in previous commit.
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Co-authored-by: mfedderly <mdfedderly@mdfedderly.com>