FS-6450 [unimrcp] Update library

[apr] Backport APR_RING_FOREACH and APR_RING_FOREACH_SAFE macros to APR for unimrcp compatibility.

 [unimrcp] configure.gnu - need full path, not relative path for library paths

 [unimrcp] added uni_revision.h - couldn't get it to autogenerate from build

 [mod_unimrcp] add better logging and error checking on module load.  Currently dumps core on MRCPv1 TTS attempt

 [mod_unimrcp] don't configure MRCPv1 session with a connection agent- causes crash

libs/unimrcp/data/speak.xml

@@ -1,6 +1,6 @@
-<?xml version="1.0"?>
-<speak version="1.0" xml:lang="en-US" xmlns="http://www.w3.org/2001/10/synthesis">
-  <p>
-    <s>Welcome to Uni MRCP.</s>
-  </p>
+<?xml version="1.0"?>
+<speak version="1.0" xml:lang="en-US" xmlns="http://www.w3.org/2001/10/synthesis">
+  <p>
+    <s>Welcome to Uni MRCP.</s>
+  </p>
 </speak>