Echo Dot Swivel wall mount

Based on: https://www.thingiverse.com/thing:2066228

As always adding source files.

There are 4 STL files:
1) Echo_Dot_swivel_wallmount_V1.1 - both cradle and long wall mount
2) Echo_Dot_swivel_EchoCradle_V1.1 - Just the cradle
3) Echo_Dot_swivel_Wall_long_V1.1 - wall mount with long arm
4) Echo_Dot_swivel_Wall_short_V1.2 - wall mount with short arm