feat(git): add git-delta

Signed-off-by: Matej Focko <mfocko@redhat.com>

roles/user/git/templates/gitconfig

@@ -8,6 +8,22 @@
 [core]
     editor       = code --wait
     excludesfile = /home/{{ target_user }}/.gitignore
+    pager        = delta
+
+[delta]
+    file-style                   = blue bold
+    # file-decoration-style        = omit
+    hunk-header-style            = omit
+    hunk-header-decoration-style = omit
+    # minus-emph-style             = normal "#701011"
+    # plus-emph-style              = syntax "#105010"
+
+    line-numbers                 = true
+    hyperlinks                   = true
+    # hyperlinks-file-link-format  = "vscode://file/{path}:{line}"
+    # side-by-side                 = true
+    navigate                     = true
+    features                     = decorations
 
 [diff]
     tool = vscode-difftool