New commands + fixes

+ Get-Mount (mounts retuned as objects for easy filtering)
+ Get-RandomMacAddress (for easy MAC Address generation)
* Get-Path modified to resolve ~, also made it work with pipeline input
* Edit-TextFile streamlined by using modified Get-Path
* Added emacs and spacemacs to MyConfig
* dcup - attempt at cleaner output
+ added docker/profile.d/env.ps1 for default docker vars

docker/profile.d/env.ps1

@@ -0,0 +1,5 @@
+# 1 - Use native build, which is the default for docker compose
+# Setting this supresses the following line, which would otherwise be displayed:
+#### Building with native build. Learn about native build in
+#### Compose here: https://docs.docker.com/go/compose-native-build/
+$env:COMPOSE_DOCKER_CLI_BUILD=1