feat(test): add doctest fixing script

Add new script to automatically fix doctests with proper package activation
and logging configuration. Includes DocMeta setup for test environment.

test/fix_doctests.jl

@@ -0,0 +1,13 @@
+using Pkg
+Pkg.activate(@__DIR__)
+using MakieMaestro
+# TODO: Warn on uncommitted changes... The workflow should be to commit, run, and commit --amend <19-12-24> 
+using Documenter
+
+# NOTE: When updating, must update also in `docs/make.jl` & 'test/runtests.jl'<18-12-24> 
+DocMeta.setdocmeta!(
+    MakieMaestro, :DocTestSetup, :(using MakieMaestro;
+    using Logging; # NOTE: This does not need to be in the `make.jl` of docs. We want `@warn ` to function there <19-12-24> 
+    Logging.disable_logging(Logging.Warn)); recursive=true
+)
+doctest(MakieMaestro; fix=true)