Start: Rewrite start scripts

Start scripts now don't update dependencies by default due to mishandling
caches from pip. Also add dedicated update scripts and save options
to a JSON file instead of a text one.

Signed-off-by: kingbri <bdashore3@proton.me>

.gitignore

@@ -200,5 +200,8 @@ sampler_overrides/*
 # Gpu lib preferences file
 gpu_lib.txt
 
+# Start options file
+start_options.json
+
 # OpenAPI JSON
 openapi.json