patch 8.0.0941: existing color schemes don't like StatusLineTerm

Problem:    Existing color schemes don't work well with StatusLineTerm.
Solution:   Don't use "reverse", use fg and bg colors.  Also add
            StatusLineTermNC.

src/vim.h

@@ -1437,6 +1437,7 @@ typedef enum
     , HLF_MC	    /* 'colorcolumn' */
     , HLF_QFL	    /* quickfix window line currently selected */
     , HLF_ST	    /* status lines of terminal windows */
+    , HLF_STNC	    /* status lines of not-current terminal windows */
     , HLF_COUNT	    /* MUST be the last one */
 } hlf_T;
 
@@ -1446,7 +1447,8 @@ typedef enum
 		  'n', 'N', 'r', 's', 'S', 'c', 't', 'v', 'V', 'w', 'W', \
 		  'f', 'F', 'A', 'C', 'D', 'T', '-', '>', \
 		  'B', 'P', 'R', 'L', \
-		  '+', '=', 'x', 'X', '*', '#', '_', '!', '.', 'o', 'q', '$'}
+		  '+', '=', 'x', 'X', '*', '#', '_', '!', '.', 'o', 'q', \
+		  'z', 'Z'}
 
 /*
  * Boolean constants