add macos dotfiles

macOS/.gitconfig

@@ -0,0 +1,23 @@
+[merge]
+	tool = kdiff3
+[user]
+	name = Mark Schmitz
+	email = mark.schmitz@mailbox.org
+[alias]
+	lg = log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset'
+[filter "lfs"]
+	process = git-lfs filter-process
+	required = true
+	clean = git-lfs clean -- %f
+	smudge = git-lfs smudge -- %f
+[difftool "Kaleidoscope"]
+	cmd = ksdiff --partial-changeset --relative-path \"$MERGED\" -- \"$LOCAL\" \"$REMOTE\"
+[mergetool "Kaleidoscope"]
+	cmd = ksdiff --merge --output \"$MERGED\" --base \"$BASE\" -- \"$LOCAL\" --snapshot \"$REMOTE\" --snapshot
+	trustexitcode = true
+[core]
+	excludesfile = /Users/mark/.config/git/ignore
+[pull]
+	rebase = false
+[init]
+	defaultBranch = main