patch 8.2.0582: color ramp test does not show text colors

Problem:    Color ramp test does not show text colors.
Solution:   Add a row of 16 text colors and 16 bold text colors.
diff --git a/src/version.c b/src/version.c
index 6464bc5..f7dfb38 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    582,
+/**/
     581,
 /**/
     580,