Add full editorconfig, mostly copied from Roslyn

Author: kzu

.editorconfig

@@ -10,12 +10,76 @@ end_of_line = CRLF
 
 [*.{cs,fs}]
 indent_style = tab
-indent_size = 4
 
 [*.{sln,proj,props,targets,xaml,config,nuspec,vsixmanifest,vsct,vstemplate}]
 indent_style = tab
-indent_size = 4
 
-[*.{csproj,ps1,resx,rst,fsproj}]
+[*.{csproj,ps1,resx,rst,fsproj,wxs,wxi}]
 indent_style = space
 indent_size = 2
+
+[*.{tt}]
+indent_style = space
+indent_size = 4
+
+# CSharp code style settings:
+[*.cs]
+# Prefer "var" everywhere
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+
+# Prefer method-like constructs to have a block body
+csharp_style_expression_bodied_methods = false:none
+csharp_style_expression_bodied_constructors = false:none
+csharp_style_expression_bodied_operators = false:none
+
+# Prefer property-like constructs to have a block body
+csharp_style_expression_bodied_properties = false:none
+csharp_style_expression_bodied_indexers = false:none
+csharp_style_expression_bodied_accessors = false:none
+
+# Don't suggest more modern language features when available
+csharp_style_pattern_matching_over_is_with_cast_check = false:suggestion
+csharp_style_pattern_matching_over_as_with_null_check = false:suggestion
+csharp_style_inlined_variable_declaration = false:suggestion
+csharp_style_throw_expression = false:suggestion
+csharp_style_conditional_delegate_call = false:suggestion
+
+# Newline settings
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_members_in_anonymous_types = true
+
+# Indentation preferences
+csharp_indent_block_contents = true
+csharp_indent_braces = false
+csharp_indent_case_contents = true
+csharp_indent_switch_labels = true
+csharp_indent_labels = flush_left
+
+# Space preferences
+csharp_space_after_cast = false
+csharp_space_after_colon_in_inheritance_clause = true
+csharp_space_after_comma = true
+csharp_space_after_dot = false
+csharp_space_after_keywords_in_control_flow_statements = true
+csharp_space_after_semicolon_in_for_statement = true
+csharp_space_around_binary_operators = before_and_after
+csharp_space_around_declaration_statements = do_not_ignore
+csharp_space_before_colon_in_inheritance_clause = true
+csharp_space_before_comma = false
+csharp_space_before_dot = false
+csharp_space_before_open_square_brackets = false
+csharp_space_before_semicolon_in_for_statement = false
+csharp_space_between_empty_square_brackets = false
+csharp_space_between_method_call_empty_parameter_list_parentheses = false
+csharp_space_between_method_call_name_and_opening_parenthesis = false
+csharp_space_between_method_call_parameter_list_parentheses = false
+csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
+csharp_space_between_method_declaration_name_and_open_parenthesis = false
+csharp_space_between_method_declaration_parameter_list_parentheses = false
+csharp_space_between_square_brackets = false