enhancement: transparent data compression hook

[j2L4e]

trafficstars

In-browser storage size is limited, so for offline-first PWAs you may end up needing some kind of data compression. A hook that handles compression transparently could be useful here.

Possible config options:

• idField
• compression / decompression callback
• compression level
• field blacklist / whitelist (you may want to exclude some data from compression for querying / sorting )

[j2L4e]

http://pieroxy.net/blog/pages/lz-string/index.html

[eddyystop]

I'm open to a PR that de/compresses. Please inject the compression dependency.