Packaging using Cmake

[kevinkreiser]

recently valhalla has been moving towards cmake support in valhalla/valhalla#1272

the packaging repository is currently making use of standard autotools to build packages for ubuntu. we dont want to continue to maintain both autotools and cmake as this is just added burden and someone will forget. we need to move toward updating packing to make use of cmake.

googling around suggests at least one thing we need to do is update debian/rules to tell it to use cmake:

dh $@ --buildsystem=cmake

there are bound to be other issues beyond that. it should also be noted that @oxidase has added cmake targets that produce .deb files but they dont conform to the same layout as the ones published on the ubuntu ppas (launchpad).

cc: @TheMarex

[danmactough]

@kevinkreiser I guess this means we're currently not building new releases, right? Any idea when that might be resolved? I would rather not have to build from source to get Valhalla onto the new telemetry Spark cluster (but that's probably a doable workaround).