Update squirrel to the latest version from the official repository.

Include the standard library that was filtered out by a mistake in the gitignore file.

external/Squirrel/Lib/sqstdblobimpl.h

@@ -0,0 +1,108 @@
+/*  see copyright notice in squirrel.h */
+#ifndef _SQSTD_BLOBIMPL_H_
+#define _SQSTD_BLOBIMPL_H_
+
+struct SQBlob : public SQStream
+{
+    SQBlob(SQInteger size) {
+        _size = size;
+        _allocated = size;
+        _buf = (unsigned char *)sq_malloc(size);
+        memset(_buf, 0, _size);
+        _ptr = 0;
+        _owns = true;
+    }
+    virtual ~SQBlob() {
+        sq_free(_buf, _allocated);
+    }
+    SQInteger Write(void *buffer, SQInteger size) {
+        if(!CanAdvance(size)) {
+            GrowBufOf(_ptr + size - _size);
+        }
+        memcpy(&_buf[_ptr], buffer, size);
+        _ptr += size;
+        return size;
+    }
+    SQInteger Read(void *buffer,SQInteger size) {
+        SQInteger n = size;
+        if(!CanAdvance(size)) {
+            if((_size - _ptr) > 0)
+                n = _size - _ptr;
+            else return 0;
+        }
+        memcpy(buffer, &_buf[_ptr], n);
+        _ptr += n;
+        return n;
+    }
+    bool Resize(SQInteger n) {
+        if(!_owns) return false;
+        if(n != _allocated) {
+            unsigned char *newbuf = (unsigned char *)sq_malloc(n);
+            memset(newbuf,0,n);
+            if(_size > n)
+                memcpy(newbuf,_buf,n);
+            else
+                memcpy(newbuf,_buf,_size);
+            sq_free(_buf,_allocated);
+            _buf=newbuf;
+            _allocated = n;
+            if(_size > _allocated)
+                _size = _allocated;
+            if(_ptr > _allocated)
+                _ptr = _allocated;
+        }
+        return true;
+    }
+    bool GrowBufOf(SQInteger n)
+    {
+        bool ret = true;
+        if(_size + n > _allocated) {
+            if(_size + n > _size * 2)
+                ret = Resize(_size + n);
+            else
+                ret = Resize(_size * 2);
+        }
+        _size = _size + n;
+        return ret;
+    }
+    bool CanAdvance(SQInteger n) {
+        if(_ptr+n>_size)return false;
+        return true;
+    }
+    SQInteger Seek(SQInteger offset, SQInteger origin) {
+        switch(origin) {
+            case SQ_SEEK_SET:
+                if(offset > _size || offset < 0) return -1;
+                _ptr = offset;
+                break;
+            case SQ_SEEK_CUR:
+                if(_ptr + offset > _size || _ptr + offset < 0) return -1;
+                _ptr += offset;
+                break;
+            case SQ_SEEK_END:
+                if(_size + offset > _size || _size + offset < 0) return -1;
+                _ptr = _size + offset;
+                break;
+            default: return -1;
+        }
+        return 0;
+    }
+    bool IsValid() {
+        return _buf?true:false;
+    }
+    bool EOS() {
+        return _ptr == _size;
+    }
+    SQInteger Flush() { return 0; }
+    SQInteger Tell() { return _ptr; }
+    SQInteger Len() { return _size; }
+    SQUserPointer GetBuf(){ return _buf; }
+private:
+    SQInteger _size;
+    SQInteger _allocated;
+    SQInteger _ptr;
+    unsigned char *_buf;
+    bool _owns;
+};
+
+#endif //_SQSTD_BLOBIMPL_H_