Add support for alternate package names

Add support for alternate package names if primary package name is not available in repos

pkg-install

@@ -13,6 +13,7 @@ error() {
 
 #$1 is a quotation-marked, space-seperated list of package names.
 #$2 is the path to the program folder being installed.
+#"package0 package1 | package2" represents "package0 & package1" or "package0 & package2" (whichever is available) in $2
 #Example usage: ~/pi-apps/pkg-install "gparted buffer expect" ~/pi-apps/apps/Arduino
 
 PKG_LIST="$1" #quotation-marked, space-seperated list of package names to install
@@ -144,7 +145,7 @@ Version: 1.0
 Architecture: all
 Priority: optional
 Section: custom
-Depends: $(echo "$PKG_LIST" | tr -d ',' | sed 's/ /, /g')
+Depends: $(echo "$PKG_LIST" | tr -d ',' | sed 's/ /, /g' | sed  's/, |/ |/g' | sed 's/|, /| /g')
 Package: pi-apps-$appnamehash" > ~/pi-apps-$appnamehash/DEBIAN/control
 
 dpkg-deb --build ~/pi-apps-$appnamehash || error "pkg-install: failed to create dummy deb pi-apps-$appnamehash"