new: [compose-core] add defaults and ``+`` sign in ``compose status`` fields spec for left/right align

bin/compose-core

@@ -5681,17 +5681,22 @@ if [ "$action" == "status" ]; then
 
     state_columns_raw=()
     for col in "${state_columns[@]}"; do
-        if [[ "$col" == "-"* ]]; then
-            col=${col#-}
+        if [[ "$col" =~ ^[+-] ]]; then
+            col=${col:1}
         fi
         state_columns_raw+=("${col//-/_}")
     done
     state_columns_align=""
     for col in "${state_columns[@]}"; do
         if [[ "$col" == "-"* ]]; then
+            state_columns_align+="-"
+        elif [[ "$col" == "+"* ]]; then
             state_columns_align+="+"
         else
-            state_columns_align+="-"
+            case "${col//_/-}" in
+                version|upstream-version) state_columns_align+="+";;
+                *) state_columns_align+="-";;
+            esac
         fi
     done