Rename files, removing "gw"-prefix

Also gwdirs.h.in -> paths.h.in

query_classifier/qc_mysqlembedded/qc_mysqlembedded.cc

@@ -64,7 +64,7 @@
 #define MYSQL_COM_INIT_DB     COM_INIT_DB
 #define MYSQL_COM_CHANGE_USER COM_CHANGE_USER
 #include <maxscale/protocol/mysql.h>
-#include <maxscale/gwdirs.h>
+#include <maxscale/paths.h>
 #include <maxscale/utils.h>
 
 #include <stdio.h>

query_classifier/test/canonical_tests/canonizer.c

@@ -17,7 +17,7 @@
 #include <string.h>
 #include <maxscale/query_classifier.h>
 #include <maxscale/buffer.h>
-#include <maxscale/gwdirs.h>
+#include <maxscale/paths.h>
 #include <maxscale/utils.h>
 
 int main(int argc, char** argv)

query_classifier/test/classify.c

@@ -20,7 +20,7 @@
 #include <maxscale/buffer.h>
 #include <mysql.h>
 #include <unistd.h>
-#include <maxscale/gwdirs.h>
+#include <maxscale/paths.h>
 #include <maxscale/log_manager.h>
 
 char* append(char* types, const char* type_name, size_t* lenp)

query_classifier/test/compare.cc

@@ -23,7 +23,7 @@
 #define MYSQL_COM_QUIT        COM_QUIT
 #define MYSQL_COM_INIT_DB     COM_INIT_DB
 #define MYSQL_COM_CHANGE_USER COM_CHANGE_USER
-#include <maxscale/gwdirs.h>
+#include <maxscale/paths.h>
 #include <maxscale/log_manager.h>
 #include <maxscale/protocol/mysql.h>
 #include <maxscale/query_classifier.h>

query_classifier/test/crash_qc_sqlite.c

@@ -13,7 +13,7 @@
 
 #include <stdio.h>
 #include <maxscale/buffer.h>
-#include <maxscale/gwdirs.h>
+#include <maxscale/paths.h>
 #include <maxscale/query_classifier.h>
 
 #define MYSQL_HEADER_LEN 4