Adding comprehensive .gitignore file

- Mostly for upcoming ctags support

.gitignore

@@ -0,0 +1,58 @@
+# Compiled source #
+###################
+*.com
+*.class
+*.dll
+*.exe
+*.o
+*.so
+*.elf
+*.bin
+*.hex
+*.lss
+*.sym
+*.map
+
+# Packages #
+############
+# it's better to unpack these files and commit the raw source
+# git has its own built in compression methods
+*.7z
+*.dmg
+*.gz
+*.iso
+*.jar
+*.rar
+*.tar
+*.zip
+
+# Logs and databases #
+######################
+*.log
+*.sql
+*.sqlite
+
+# OS generated files #
+######################
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Editor generated files #
+##########################
+*.swp
+
+# Source browsing files #
+#########################
+tags
+
+# CMake Generated Files #
+#########################
+CMakeFiles
+CMakeCache.txt
+cmake_install.cmake
+