Update to v094r38 release.

byuu says:

I'll post more detailed changes later, but basically:
- fixed Baldur's Gate bug
- guess if no flash ROM ID present (fixes Magical Vacation, many many
  others)
- nall cleanups
- sfc/cartridge major cleanups
- bsxcartridge/"bsx" renamed to mcc/"mcc" after the logic chip it uses
  (consistency with SGB/ICD2)
- ... and more!

nall/encode/base64.hpp

@@ -0,0 +1,70 @@
+#ifndef NALL_ENCODE_BASE64_HPP
+#define NALL_ENCODE_BASE64_HPP
+
+namespace nall { namespace Encode {
+
+inline auto Base64(const uint8_t* data, unsigned size, const string& format = "MIME") -> string {
+  vector<uint8_t> result;
+
+  char lookup[65];
+  for(unsigned n = 0; n < 26; n++) lookup[ 0 + n] = 'A' + n;
+  for(unsigned n = 0; n < 26; n++) lookup[26 + n] = 'a' + n;
+  for(unsigned n = 0; n < 10; n++) lookup[52 + n] = '0' + n;
+
+  if(format == "MIME") {
+    lookup[62] = '+';
+    lookup[63] = '/';
+    lookup[64] = '=';
+  } else if(format == "URI") {
+    lookup[62] = '-';
+    lookup[63] = '_';
+    lookup[64] = 0;
+  } else return "";
+
+  unsigned overflow = (3 - (size % 3)) % 3;  //bytes to round to nearest multiple of 3
+  uint8_t buffer;
+
+  for(unsigned i = 0; i < size; i++) {
+    switch(i % 3) {
+    case 0:
+      buffer = data[i] >> 2;
+      result.append(lookup[buffer]);
+      buffer = (data[i] & 3) << 4;
+      result.append(lookup[buffer]);
+      break;
+
+    case 1:
+      buffer |= data[i] >> 4;
+      result.last() = lookup[buffer];
+      buffer = (data[i] & 15) << 2;
+      result.append(lookup[buffer]);
+      break;
+
+    case 2:
+      buffer |= data[i] >> 6;
+      result.last() = lookup[buffer];
+      buffer = (data[i] & 63);
+      result.append(lookup[buffer]);
+      break;
+    }
+  }
+
+  if(lookup[64]) {
+    if(overflow >= 1) result.append(lookup[64]);
+    if(overflow >= 2) result.append(lookup[64]);
+  }
+
+  return result;
+}
+
+inline auto Base64(const vector<uint8_t>& buffer, const string& format = "MIME") -> string {
+  return Base64(buffer.data(), buffer.size(), format);
+}
+
+inline auto Base64(const string& text, const string& format = "MIME") -> string {
+  return Base64(text.binary(), text.size(), format);
+}
+
+}}
+
+#endif