Baseline editorconfig, gitattributes, and gitignore

.editorconfig

[root] = true

[*]
indent_style = space
insert_final_newline = true
trim_trailing_whitespace = true

[*.{csproj,props}]
indent_size = 2

[*.cs]
indent_size = 4
csharp_style_namespace_declarations = file_scoped:warning
csharp_using_directive_placement = outside_namespace:warning
dotnet_naming_rule.instance_fields_should_be_camel_case.severity = suggestion
dotnet_naming_rule.instance_fields_should_be_camel_case.style = instance_field_style
dotnet_naming_rule.instance_fields_should_be_camel_case.symbols = instance_fields
dotnet_naming_style.instance_field_style.capitalization = camel_case
dotnet_naming_style.instance_field_style.required_prefix = _
dotnet_naming_symbols.instance_fields.applicable_kinds = field
dotnet_sort_system_directives_first = true
dotnet_style_object_initializer = false
dotnet_style_predefined_type_for_locals_parameters_members = true
dotnet_style_predefined_type_for_member_access = false
dotnet_style_prefer_inferred_anonymous_type_member_names = false
dotnet_style_qualification_for_event = false
dotnet_style_qualification_for_field = false
dotnet_style_qualification_for_method = false
dotnet_style_qualification_for_property	= false
dotnet_style_readonly_field = true
dotnet_style_require_accessibility_modifiers = for_non_interface_members
dotnet_diagnostic.IDE0005.severity = warning # Remove unnecessary using directives
dotnet_diagnostic.IDE0017.severity = none # Use object initializers
dotnet_diagnostic.IDE0028.severity = none # Use collection initializers
dotnet_diagnostic.IDE0161.severity = warning # File-scoped namespaces

.gitattributes

* text=auto

.gitignore

.vs/
.vscode/
bin/
obj/