Update gitignore to other comparable ROCm projects (#1117)

Have git ignore build directory and compiled python
Add ignores from other ROCm projects that look applicable
Ignore downloaded models in test/
Remove including visual studio settings

.gitignore

-*.swp
+#==============================================================================#
+# File extensions to be ignored anywhere in the tree.
+#==============================================================================#
+
+# Temp files created by most text editors
+*~
+
+# Merge files created by git
+*.orig
+
+# Byte compiled python modules
+*.pyc
+*.pyd
+
+# Vim swap files
+.*.sw?
+.sw?
+
+# Visual Studio
+.vs
+/.vscode/*
+
+# Sublime Text settings
+*.sublime-workspace
+*.sublime-project
+
+# Eclipse Project settings
+*.*project
+.settings
+
+# OS X specific files
+.DS_store
+
+#==============================================================================#
+# Explicit files to ignore (only matches one).
+#==============================================================================#
+
+# Various tags
+/tags
+/TAGS
+/GPATH
+/GRTAGS
+/GSYMS
+/GTAGS
+/ID
+.gitusers
+/compile_commands.json
+
+/CMakeSettings.json
+
+
+#==============================================================================#
+# Directories to ignore (do not add trailing '/'s, they skip symlinks).
+#==============================================================================#
+# Nested build directory
+/build*
+
+# Downloaded models
+test/onnx/models
+
+# VS2017 and VSCode config files.
+.vscode
+.vs