add quantization ops in onnx (onnx#1908)

* add quantized ops

* shape inference for matmul ops.

* update

* add quantization parameter annotation in graph proto.

* update IR version

* update proto files

* update operator.md

* update

* fix build break.

* fix build break.

* sync and resolve comments

* revert the change by mistake.

* fix shape inference test failure.

* fix comments

* Add ops to operator sets

* update docs and 1 typo fix

* try fix CI

* fix more typos and add 2 ops back

* remove commented code

Author: askhade

docs/Changelog.md

@@ -5,7 +5,7 @@
 * [Overall Test Coverage](#overall-test-coverage)
 # Node Test Coverage
 ## Summary
-Node tests have covered 114/121 (94.21%, 5 generators excluded) common operators.
+Node tests have covered 114/127 (89.76%, 5 generators excluded) common operators.
 
 Node tests have covered 0/0 (N/A) experimental operators.
 
@@ -7061,6 +7061,12 @@ expect(node, inputs=[x, y], outputs=[z],
 <br/>
 
 ## &#x1F494;No Cover Common Operators
+### ConvInteger (call for test cases)
+
+
+### DequantizeLinear (call for test cases)
+
+
 ### GlobalLpPool (call for test cases)
 
 
@@ -7076,12 +7082,24 @@ expect(node, inputs=[x, y], outputs=[z],
 ### LpPool (call for test cases)
 
 
+### MatMulInteger (call for test cases)
+
+
 ### MaxRoiPool (call for test cases)
 
 
 ### Multinomial (random generator operator)
 
 
+### QLinearConv (call for test cases)
+
+
+### QLinearMatMul (call for test cases)
+
+
+### QuantizeLinear (call for test cases)
+
+
 ### RandomNormal (random generator operator)