Add ObjectGenerator and Register Allocator (#10)

* start the ObjectFileGenerator

* finish v3 generation

* add analysis for register allocator

* add register allocator

* fix const

* fix build

* fix formatting for clang-format

* attempt to fix windows build

* windows 2

* windows 3

* windows 4

* windows 5

* windows 6

goalc/emitter/ObjectFileData.cpp

@@ -0,0 +1,20 @@
+#include "ObjectFileData.h"
+
+namespace emitter {
+std::vector<u8> ObjectFileData::to_vector() const {
+  std::vector<uint8_t> result;
+  // header
+  result.insert(result.end(), header.begin(), header.end());
+
+  // link tables
+  for (int seg = N_SEG; seg-- > 0;) {
+    result.insert(result.end(), link_tables[seg].begin(), link_tables[seg].end());
+  }
+
+  // data (code + static objects, by segment)
+  for (int seg = N_SEG; seg-- > 0;) {
+    result.insert(result.end(), segment_data[seg].begin(), segment_data[seg].end());
+  }
+  return result;
+}
+}  // namespace emitter