Add luacheckrc files

iox/.luacheckrc

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+../luacheckrc

luacheckrc

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+codes = true
+stds.sandboxcommon = {
+	globals = {
+		"mem",
+	},
+	read_globals = {
+		"assert",
+		"error",
+		"ipairs",
+		"next",
+		"pairs",
+		"select",
+		"tonumber",
+		"tostring",
+		"type",
+		"unpack",
+		"_VERSION",
+		"event",
+		"heat",
+		"heat_max",
+		"print",
+		"interrupt",
+		"digiline_send",
+		string = {
+			fields = {
+				"byte",
+				"char",
+				"format",
+				"len",
+				"lower",
+				"upper",
+				"rep",
+				"reverse",
+				"sub",
+				"find",
+			},
+		},
+		math = {
+			fields = {
+				"abs",
+				"acos",
+				"asin",
+				"atan",
+				"atan2",
+				"ceil",
+				"cos",
+				"cosh",
+				"deg",
+				"exp",
+				"floor",
+				"fmod",
+				"frexp",
+				"huge",
+				"ldexp",
+				"log",
+				"log10",
+				"max",
+				"min",
+				"modf",
+				"pi",
+				"pow",
+				"rad",
+				"random",
+				"sin",
+				"sinh",
+				"sqrt",
+				"tan",
+				"tanh",
+			},
+		},
+		table = {
+			fields = {
+				"concat",
+				"insert",
+				"maxn",
+				"remove",
+				"sort",
+			},
+		},
+		os = {
+			fields = {
+				"clock",
+				"difftime",
+				"time",
+				"datetable",
+			},
+		},
+	},
+}
+
+stds.sandboxcommonwriteable = {
+	globals = {
+		"mem",
+	},
+}
+for k, v in pairs(stds.sandboxcommon.read_globals) do
+	stds.sandboxcommonwriteable.globals[k] = v
+end
+
+stds.luacontroller = {
+	globals = {
+		port = {
+			fields = {"a", "b", "c", "d"},
+		},
+	},
+	read_globals = {
+		pin = {
+			fields = {"a", "b", "c", "d"},
+		},
+	},
+}
+
+stds.luacontrollerwriteable = {
+	globals = {
+		port = {
+			fields = {"a", "b", "c", "d"},
+		},
+		pin = {
+			fields = {"a", "b", "c", "d"},
+		},
+	},
+}
+
+files["*.lua"].std = "sandboxcommon+luacontroller"
+files["test-*.lua"].std = "sandboxcommonwriteable+luacontrollerwriteable+luajit"

power-regulator/.luacheckrc

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+../luacheckrc

scanner/.luacheckrc

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+../luacheckrc