Added module: command-dispatcher, allows shell commands to be run

Ticket: CFE-4627

Signed-off-by: Simon Halvorsen <simon.halvorsen@northern.tech>

Author: SimonThalvorsen

management/command-dispatcher/README.md

@@ -0,0 +1,28 @@
+This module enables the running of shell commands based on input from the Mission-Portal's build page or `cfbs input`.
+
+Internally these commands are ran using the `"useshell"`-promise based
+on the `condition`-variable. 
+
+---
+
+**Usage:**
+
+`command` - The command to run
+
+`condition` - Condition for running e.g `linux`, `debian`, etc. Defaults to `"any"`
+
+`ifelapsed` - Number of minutes between assessments. Defaults to 5
+
+E.g. 
+```
+...
+{
+"command": "echo \"Hello World\"",
+"condition": "linux",
+"ifelapsed": "5"
+},
+...
+```
+Would echo "Hello world" on every linux devices in 5 minute intervals.
+
+