add(tooling) dotfiles

.editorconfig

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+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.luacheckrc

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+-- Only allow symbols available in all Lua versions
+std = "min"
+
+-- Get rid of "unused argument self"-warnings
+self = false
+
+-- Global objects defined by the C code
+read_globals = {
+    "awesome",
+    "button",
+    "dbus",
+    "drawable",
+    "drawin",
+    "key",
+    "keygrabber",
+    "mousegrabber",
+    "selection",
+    "tag",
+    "window",
+    "table.unpack",
+    "math.atan2",
+}
+
+-- screen may not be read-only, because newer luacheck versions complain about
+-- screen[1].tags[1].selected = true.
+-- The same happens with the following code:
+--   local tags = mouse.screen.tags
+--   tags[7].index = 4
+-- client may not be read-only due to client.focus.
+globals = { "screen", "mouse", "root", "client" }
+
+-- Enable cache (uses .luacheckcache relative to this rc file).
+cache = true

stylua.toml

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+column_width = 80
+line_endings = "Unix"
+indent_type = "Spaces"
+indent_width = 4
+quote_style = "AutoPreferDouble"
+no_call_parentheses = true