Add a .editorconfig that should more or less align with the .clang-format so the editing experience is similar to the enforced code style

Author: dmachaj

.editorconfig

@@ -0,0 +1,106 @@
+# editorconfig: http://editorconfig.org/
+# Help developers standardize spaces, tabs, encoding, end-line characters across editors
+
+# top-most .editorconfig file
+root = true
+
+# defaults for all files
+[*]
+charset = utf-8
+end_of_line = lf
+tab_width = 4
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# markdown, diff overrides
+# two trailing spaces are required for <br/> and hard line-breaks in markdown files
+# see: (https://daringfireball.net/projects/markdown/syntax#p) and (http://spec.commonmark.org/0.27/#hard-line-break)
+[*.{md,diff}]
+trim_trailing_whitespace = false
+
+[*.{md,xml,xsd,gprops,man,natvis}]
+indent_size = 2
+
+# XML-based MSBuild and Visual Studio files
+[*.{props,targets,settings,*proj,vcxitems,filters,ruleset,config,nuspec,resx,vsixmanifest,vsct}]
+indent_size = 2
+
+# Exceptions to the above *proj wildcard
+[*.vdproj]
+indent_size = 4
+
+# Visual Studio uses hard tabs for SLN files, so don't fight it
+[*.sln]
+indent_style = tab
+
+# Visual Studio removes the last empty line, so don't fight it
+[*.{vcxproj}]
+insert_final_newline = false
+
+# YAML overrides
+[*.{yml,yaml}]
+indent_size = 2
+
+[*.{cpp,h,idl}]
+trim_trailing_whitespace = true
+insert_final_newline = true
+cpp_indent_braces=false
+cpp_indent_multi_line_relative_to=innermost_parenthesis
+cpp_indent_within_parentheses=indent
+cpp_indent_preserve_within_parentheses=false
+cpp_indent_case_contents=true
+cpp_indent_case_labels=false
+cpp_indent_case_contents_when_block=false
+cpp_indent_lambda_braces_when_parameter=true
+cpp_indent_goto_labels=one_left
+cpp_indent_preprocessor=leftmost_column
+cpp_indent_access_specifiers=false
+cpp_indent_namespace_contents=true
+cpp_indent_preserve_comments=false
+cpp_new_line_before_open_brace_namespace=ignore
+cpp_new_line_before_open_brace_type=ignore
+cpp_new_line_before_open_brace_function=ignore
+cpp_new_line_before_open_brace_block=ignore
+cpp_new_line_before_open_brace_lambda=ignore
+cpp_new_line_scope_braces_on_separate_lines=false
+cpp_new_line_close_brace_same_line_empty_type=false
+cpp_new_line_close_brace_same_line_empty_function=false
+cpp_new_line_before_catch=true
+cpp_new_line_before_else=true
+cpp_new_line_before_while_in_do_while=false
+cpp_space_before_function_open_parenthesis=remove
+cpp_space_within_parameter_list_parentheses=false
+cpp_space_between_empty_parameter_list_parentheses=false
+cpp_space_after_keywords_in_control_flow_statements=true
+cpp_space_within_control_flow_statement_parentheses=false
+cpp_space_before_lambda_open_parenthesis=false
+cpp_space_within_cast_parentheses=false
+cpp_space_after_cast_close_parenthesis=false
+cpp_space_within_expression_parentheses=false
+cpp_space_before_block_open_brace=true
+cpp_space_between_empty_braces=false
+cpp_space_before_initializer_list_open_brace=false
+cpp_space_within_initializer_list_braces=true
+cpp_space_preserve_in_initializer_list=true
+cpp_space_before_open_square_bracket=false
+cpp_space_within_square_brackets=false
+cpp_space_before_empty_square_brackets=false
+cpp_space_between_empty_square_brackets=false
+cpp_space_group_square_brackets=true
+cpp_space_within_lambda_brackets=false
+cpp_space_between_empty_lambda_brackets=false
+cpp_space_before_comma=false
+cpp_space_after_comma=true
+cpp_space_remove_around_member_operators=true
+cpp_space_before_inheritance_colon=true
+cpp_space_before_constructor_colon=true
+cpp_space_remove_before_semicolon=true
+cpp_space_after_semicolon=false
+cpp_space_remove_around_unary_operator=true
+cpp_space_around_binary_operator=insert
+cpp_space_around_assignment_operator=insert
+cpp_space_pointer_reference_alignment=left
+cpp_space_around_ternary_operator=insert
+cpp_wrap_preserve_blocks=one_liners