Merge pull request #85 from reggie3/dependabot/npm_and_yarn/WebViewLeaflet/acorn-5.7.4

Bump acorn from 5.7.3 to 5.7.4 in /WebViewLeaflet

update readme

clean up app.tsx

Merge pull request #71 from reggie3/dependabot/npm_and_yarn/WebViewLeaflet/serialize-to-js-3.0.2

formatting

centering works properly now

need to figure out a way to recenter map at position;

need to fix own position marker

Bump serialize-to-js from 3.0.0 to 3.0.2 in /WebViewLeaflet

can draw shapes, markers, and those markers are clickable and groupable

typescript for react native component works

renders animated markers on phone, need to add events next

add additional layers, but only tilelayer works

can render tile layers