zshrc: add .zshcfg

common/.zshrc

@@ -4,8 +4,12 @@ fi
 
 fpath=(~/.zsh $fpath)
 
-CONF_BINARYCLOCK=1
-CONF_ENABLEGIT=1
+if [[ -f "$HOME/.zshcfg" ]]; then
+  source ~/.zshcfg
+else
+  CONF_BINARYCLOCK=0
+  CONF_ENABLEGIT=0
+fi
 
 if [[ $CONF_ENABLEGIT -eq 1 ]]; then
   if [[ ! -d "$HOME/.zsh/gitstatus" ]]; then