changed fragments to .sh extension

fragments/labels/istatmenus.sh

@@ -0,0 +1,9 @@
+istatmenus)
+    # credit: AP Orlebeke (@apizz)
+    name="iStat Menus"
+    type="zip"
+    downloadURL="https://download.bjango.com/istatmenus/"
+    expectedTeamID="Y93TK974AT"
+    appNewVersion=$(curl -fs https://bjango.com/mac/istatmenus/versionhistory/ | grep "<h3>" | head -1 | sed -E 's/<h3>([0-9.]*)<\/h3>/\1/')
+    blockingProcesses=( "iStat Menus" "iStatMenusAgent" "iStat Menus Status" )
+    ;;