dump_table_ddl prints primary and foreign key constraints

- fixes the previous inability to print combined primary keys
- extends the ability to print foreign key constraints

Merge tag '21.15.1' into develop

CHANGELOG.adoc

 = Changelog
 ifndef::ci_commit_link[:ci_commit_link: link:/../../commit/]
 
+== tag: 21.15.1
+* bumped version ({ci_commit_link}2059f8c[2059f8c])
+
+
+* dump_table_ddl prints primary and foreign key constraints ({ci_commit_link}7d00e4f[7d00e4f])
+
+
+* dump_table_ddl function prints primary and foreign keys ({ci_commit_link}57b7575[57b7575])
+
+
+* added plenty of backslash escapes to fix query formatting ({ci_commit_link}d15470e[d15470e])
+
+
+* adapted final exercise to dynamic queries content ({ci_commit_link}f9c6a9f[f9c6a9f])
+
 == tag: 21.15.0
+* adapted final exercise to dynamic queries content ({ci_commit_link}76a06b5[76a06b5])
+
+
+* changelog updated ({ci_commit_link}df4d27e[df4d27e])
+
+
 * bumped version ({ci_commit_link}553f395[553f395])
 
 

VERSION

-21.15.0
+21.15.1