Add basics for context-based Logger

core/log/log.odin

@@ -0,0 +1,34 @@
+package log
+
+Level :: enum {
+	Debug,
+	Info,
+	Warning,
+	Error,
+	Fatal,
+}
+
+Option :: enum {
+	Level,
+	Time,
+	File,
+	Line,
+	Procedure,
+}
+Options :: bit_set[Option];
+
+Logger_Proc :: #type proc(data: rawptr, level: Level, ident, text: string, options: Options, location := #caller_location);
+
+Logger :: struct {
+	procedure: Logger_Proc,
+	data:      rawptr,
+}
+
+
+nil_logger_proc :: proc(data: rawptr, level: Level, ident, text: string, options: Options, location := #caller_location) {
+	// Do nothing
+}
+
+nil_logger :: proc() -> Logger {
+	return Logger{nil_logger_proc, nil};
+}