Cleanup comments, move internal stuff to be private, slightly improve read_bits(), start work on user-friendly stuff and options

example/main.odin

@@ -1,19 +1,29 @@
 package flac_example
 
 import "core:fmt"
+import "core:mem"
+import "core:mem/virtual"
 import "core:os"
 import "core:time"
 
 import "../"
 
 main :: proc() {
-    start := time.now()
-		if len(os.args) < 2 {
+    if len(os.args) < 2 {
         fmt.eprintln("Please provide a path to a flac file.")
         os.exit(1)
     }
 
-    err := flac.load_from_file(os.args[1])
+    arena: virtual.Arena
+    arena_err := virtual.arena_init_static(&arena, mem.Megabyte * 8)
+    if arena_err != nil {
+        fmt.eprintln("Failed to alloc memory")
+        return
+    }
+    allocator := virtual.arena_allocator(&arena)
+
+    start := time.now()
+    err := flac.load_from_file(os.args[1], allocator = allocator)
     if err != nil {
         fmt.eprintln(err)
         os.exit(1)