Include 'elm-pep' pointer events polyfill for old browsers. #88

[paul121]

Only adds 2kiB, seems safe to include the polyfill in main.js so we know it is always included? I believe this would need to be included for controls, interactions & behaviors as they all might provide pointer events and be effected. So perhaps it would be better to include the polyfill in defaults.js?

I'm not too familiar with polyfills & unsure what is best! I'll add a commit for both of those options, can include either one.

Before:

Hash: 2c651843bac22a73b9e8
Version: webpack 4.44.0
Time: 5846ms
Built at: 09/19/2020 11:52:18 AM
        Asset      Size  Chunks                    Chunk Names
farmOS-map.js   541 KiB       0  [emitted]  [big]  main
   index.html  1.06 KiB          [emitted]         
    mapbox.js  13.4 KiB          [emitted] 

After:

Hash: 3c160e4130076d992653
Version: webpack 4.44.0
Time: 1528ms
Built at: 09/19/2020 11:51:14 AM
        Asset      Size  Chunks                    Chunk Names
farmOS-map.js   543 KiB       0  [emitted]  [big]  main
   index.html  1.06 KiB          [emitted]         
    mapbox.js  13.4 KiB          [emitted]        

[mstenta]

Postponed pending license discussion in #88

[mstenta]

Oops - I changed the default branch to 1.x - forgot that this would affect open PRs. :-(

[mstenta]

Sorry @paul121 ! You can open a new PR against 1.x if you'd like...