Add mvcc.h to the tree

core/mvcc/.gitignore

@@ -1,3 +1,2 @@
 Cargo.lock
-bindings/c/include
 target/

core/mvcc/bindings/c/include/mvcc.h

@@ -0,0 +1,26 @@
+#ifndef MVCC_H
+#define MVCC_H
+
+#define MVCC_OK 0
+
+#define MVCC_IO_ERROR_WRITE 778
+
+typedef struct DbContext DbContext;
+
+typedef const DbContext *MVCCDatabaseRef;
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+MVCCDatabaseRef MVCCDatabaseOpen(const char *path);
+
+void MVCCDatabaseClose(MVCCDatabaseRef db);
+
+int32_t MVCCDatabaseInsert(MVCCDatabaseRef db, uint64_t id, const uint8_t *value_ptr, uintptr_t value_len);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif // __cplusplus
+
+#endif /* MVCC_H */