Added .editorconfig

.editorconfig

@@ -0,0 +1,56 @@
+# To learn more about .editorconfig see https://aka.ms/editorconfigdocs
+###############################
+# Core EditorConfig Options   #
+###############################
+# All files
+[*]
+end_of_line              = crlf
+indent_style             = space
+insert_final_newline     = true
+trim_trailing_whitespace = true
+# Code files
+[*.{cs,csx,fs,fsx,vb,vbx}]
+indent_size          = 4
+charset              = utf-8-bom
+# Project files
+[*.{csproj,fsproj,vbproj,shproj,projitems}]
+indent_size          = 2
+charset              = utf-8-bom
+###############################
+# F# Coding Conventions       #
+###############################
+[*.{fs,fsx}]
+max_line_length = 120
+fsharp_semicolon_at_end_of_line = false
+fsharp_space_before_parameter = true
+fsharp_space_before_lowercase_invocation = true
+fsharp_space_before_uppercase_invocation = true
+fsharp_space_before_class_constructor = true
+fsharp_space_before_member = true
+fsharp_space_before_colon = true
+fsharp_space_after_comma = true
+fsharp_space_before_semicolon = false
+fsharp_space_after_semicolon = true
+fsharp_indent_on_try_with = false
+fsharp_space_around_delimiter = true
+fsharp_max_if_then_else_short_width = 80
+fsharp_max_infix_operator_expression = 80
+fsharp_max_record_width = 80
+fsharp_max_record_number_of_items = 1
+fsharp_record_multiline_formatter = character_width
+fsharp_max_array_or_list_width = 80
+fsharp_max_array_or_list_number_of_items = 10
+fsharp_array_or_list_multiline_formatter = character_width
+fsharp_max_value_binding_width = 80
+fsharp_max_function_binding_width = 80
+fsharp_max_dot_get_expression_width = 40
+fsharp_multiline_block_brackets_on_same_column = false
+fsharp_newline_between_type_definition_and_members = false
+fsharp_keep_if_then_in_same_line = false
+fsharp_max_elmish_width = 80
+fsharp_single_argument_web_mode = false
+fsharp_align_function_signature_to_indentation = false
+fsharp_alternative_long_member_definitions = false
+fsharp_multi_line_lambda_closing_newline = false
+fsharp_disable_elmish_syntax = false
+fsharp_strict_mode = false