Add initial configs for obsidian and copy logic for files

obsidian seems to only have a per-vault config approach, so my approach
is to define settings within .config/obsidian, then copy to vault dirs

copy_dotfiles.sh

@@ -42,6 +42,11 @@ copy_dir src_files/.config $XDG_CONFIG_HOME
 copy_dir src_files/.local/bin $DIR_BIN
 copy_dir src_files/.local/scripts $DIR_SCRIPTS
 
+for obs_dir in "${OBSIDIAN_WORKSPACES_TO_CONFIGURE[@]}"; do
+    [[ ! -d "$obs_dir/.obsidian" ]] && mkdir "$obs_dir/.obsidian"
+    copy_dir $XDG_CONFIG_HOME/obsidian "$obs_dir/.obsidian"
+done
+
 [[ "$BOX_SETUP_OS" = "macos" ]] && {
     copy_dir src_files/executable_wrappers_macos $DIR_BIN
     link_dir "$XDG_CONFIG_HOME/GIMP" "$HOME/Library/Application Support/GIMP"