restructuring for easier maintenance

- creating src packages when things can't be installed via
  actual system package
- neovim srcpkg is being worked on now

tasks/pkgs/Darwin/git.yml

@@ -0,0 +1,20 @@
+---
+- name: set git_pkgs
+  set_fact:
+    git_pkgs:
+      - git
+      - git-delta
+      - git-extras
+      - git-lfs
+  tags:
+    - MacOS
+    - homebrew
+    - package
+
+- name: append git to brewpkgs
+  set_fact:
+    brewpkgs: "{{ brewpkgs + git_pkgs }}"
+  tags:
+    - MacOS
+    - homebrew
+    - package