Courgette: Add static method QuickDetect() to optimize program detection.

courgette/disassembler_elf_32_x86.h

Index: courgette/disassembler_elf_32_x86.h
diff --git a/courgette/disassembler_elf_32_x86.h b/courgette/disassembler_elf_32_x86.h
index 706e6fee33b101e354727ab037ee90942613d43f..9664cb051631092add4f1a79955b2f21b9df77c6 100644
--- a/courgette/disassembler_elf_32_x86.h
+++ b/courgette/disassembler_elf_32_x86.h
@@ -20,6 +20,11 @@ class AssemblyProgram;
 
 class DisassemblerElf32X86 : public DisassemblerElf32 {
  public:
+  static bool QuickDetects(const void* start, size_t length) {
+    return DisassemblerElf32::QuickDetects(
+        reinterpret_cast<const uint8_t*>(start), length, EM_386);
+  }
+
   class TypedRVAX86 : public TypedRVA {
    public:
     explicit TypedRVAX86(RVA rva) : TypedRVA(rva) { }