feat(dive): add 3rd party fallback completion loader

https://github.com/wagoodman/dive

Author: scop

completions-fallback/.gitignore

@@ -55,6 +55,7 @@
 /devspace.bash
 /diesel.bash
 /diffoci.bash
+/dive.bash
 /dlv.bash
 /docker.bash
 /dprint.bash

completions-fallback/Makefile.am

@@ -134,6 +134,7 @@ CLEANFILES = \
 	devspace.bash \
 	diesel.bash \
 	diffoci.bash \
+	dive.bash \
 	dlv.bash \
 	docker.bash \
 	dprint.bash \
@@ -360,6 +361,7 @@ symlinks: $(DATA)
 		depot \
 		devspace \
 		diffoci \
+		dive \
 		dlv \
 		docker \
 		driftctl \