Update .gitignore and MANIFEST.SKIP files

Fix their syntax and add files generated on AppVeyor.

Author: pali

.gitignore

@@ -1,16 +1,16 @@
-Makefile
-blib
-dbdimp.o
-MariaDB.bs
-MariaDB.c
-MariaDB.o
-MariaDB.xsi
-socket.o
-pm_to_blib
-t/MariaDB.mtest
-MYMETA.*
-*.tmp
-*.bak
-*.old
-INSTALL.html
-/DBD-MariaDB-*
+/*.exe
+/*.o
+/DBD-MariaDB-*.tar.gz
+/MYMETA.json
+/MYMETA.yml
+/Makefile
+/Makefile.old
+/MariaDB.bs
+/MariaDB.c
+/MariaDB.def
+/MariaDB.xsi
+/blib/
+/dll.base
+/dll.exp
+/pm_to_blib
+/t/MariaDB.mtest

MANIFEST.SKIP

@@ -1,18 +1,21 @@
-\B\.git\b
-^blib\/
-pm_to_blib
-\~$
-^Makefile(\.old)?$
-.gitignore
-^DBD-MariaDB-\d
-\.bak$
-\.tmp$
-\.o$
-t/MariaDB.mtest
-^MYMETA
-MariaDB.c
-MariaDB.xsi
-MariaDB.bs
-appveyor.yml
-.mailmap
-.travis.yml
+^.*\.exe$
+^.*\.o$
+^DBD-MariaDB-.*\.tar\.gz$
+^MYMETA\.json$
+^MYMETA\.yml$
+^Makefile$
+^Makefile\.old$
+^MariaDB\.bs$
+^MariaDB\.c$
+^MariaDB\.def$
+^MariaDB\.xsi$
+^\.git/.*$
+^\.gitignore$
+^\.mailmap$
+^\.travis\.yml$
+^appveyor\.yml$
+^blib/.*$
+^dll\.base$
+^dll\.exp$
+^pm_to_blib$
+^t/MariaDB\.mtest$