Split global .gitignore file into per-directory files

.gitignore

@@ -23,43 +23,7 @@
 /avconv
 /avplay
 /avprobe
+/avversion.h
 /config.*
 /coverage.info
-/avversion.h
-/doc/*.1
-/doc/*.html
-/doc/*.pod
-/doc/avoptions_codec.texi
-/doc/avoptions_format.texi
-/doc/doxy/html/
-/doc/examples/avcodec
-/doc/examples/filter_audio
-/doc/examples/metadata
-/doc/examples/output
-/doc/examples/transcode_aac
-/doc/print_options
 /lcov/
-/libavformat/protocol_list.c
-/libavcodec/*_tablegen
-/libavcodec/*_tables.c
-/libavcodec/*_tables.h
-/libavcodec/bsf_list.c
-/libavutil/avconfig.h
-/tests/audiogen
-/tests/base64
-/tests/checkasm/checkasm
-/tests/data/
-/tests/pixfmts.mak
-/tests/rotozoom
-/tests/tiny_psnr
-/tests/videogen
-/tests/vsynth1/
-/tools/aviocat
-/tools/cws2fws
-/tools/graph2dot
-/tools/ismindex
-/tools/pktdumper
-/tools/probetest
-/tools/qt-faststart
-/tools/sidxindex
-/tools/trasher

doc/.gitignore

+/*.1
+/*.html
+/*.pod
+/avoptions_codec.texi
+/avoptions_format.texi
+/print_options

doc/doxy/.gitignore

+/html/

doc/examples/.gitignore

+/avcodec
+/filter_audio
+/metadata
+/output
+/transcode_aac

libavcodec/.gitignore

+/*_tablegen
+/*_tables.c
+/*_tables.h
+/bsf_list.c

libavformat/.gitignore

+/protocol_list.c

libavutil/.gitignore

+/avconfig.h

tests/.gitignore

+/audiogen
+/base64
+/data/
+/pixfmts.mak
+/rotozoom
+/tiny_psnr
+/videogen
+/vsynth1/

tests/checkasm/.gitignore

+/checkasm

tools/.gitignore

+/aviocat
+/cws2fws
+/graph2dot
+/ismindex
+/pktdumper
+/probetest
+/qt-faststart
+/sidxindex
+/trasher