Make bridgedb fast

Cold startup (fresh bridgedb install) -

	= old =	= new =
= with logging =	20.714s	14.172s
= without logging =	10.440s	4.393s

More detailed info - old bridgedb - bridgedb 16.73s user 2.09s system 90% cpu 20.714 total bridgedb 6.93s user 1.58s system 81% cpu 10.440 total

new bridgedb - bridgedb 13.59s user 0.52s system 99% cpu 14.172 total bridgedb 4.24s user 0.09s system 98% cpu 4.393 total

Note - this breaks Stability stuff, set COLLECT_TIMESTAMP=False

Commit messages should be self explanatory.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information