added background source and paths to increase loading time

lib/background.zsh

@@ -0,0 +1,7 @@
+# Appends to path arra in background to reduce load timey
+# example
+# path_push /usr/local
+function bg_source() {
+  source $1 
+}
+

lib/path.zsh

@@ -0,0 +1,11 @@
+# Appends to path arra in background to reduce load timey
+# example
+# path_push /usr/local
+function path_push() {
+  export PATH=$PATH:$1 &>/dev/null
+}
+
+# Prepends to path array in background to reduce load time
+function path_unshift() {
+  export PATH=$1:$PATH &>/dev/null
+}