[onert-micro] TODO list for Sep Release

[chunseoklee]

I will prepare onert-2.0 release by Sep. But, internal audit process takes several weeks after code freeze. Thus, we need to complete the following feature by Aug.

• training GRU op : [onert-micro] how to support on-device training on model with GRU ? #13365 (comment)
• Extend quantized operation coverage : [onert-micro] plan for quantized kernel  #13207 (comment)
  • cmsis_nn supports 10 NN operations. onert-micro already accelereate 8 operations by cmsis_nn. SVDF and LSTM is the only operation remains to add.
    • hope [onert-mico] Use CMSIS_NN for Relu,Relu6 #13681 will cover two cmsis_nn ops
    • SVDF [onert-micro] Add svdf cmsis-nn #13719
  • 20 quantized ops
    • AFIU, the following ops already support S8 type, but some of them does not provide unittest.
      • FullyConnected S8
      • FullyConnected S16
      • Logistic S8 : [onert-micro] S8 Test for Logisitic #13688
      • StridedSlice : [onert-micro] S8, Int32 and Neg Tests for StridedSlice #13726
      • Add
      • Softmax.cpp
      • Mul
      • Gather : [onert-micro] S8 Test for Gather #13710
      • Relu : [onert-mico] Use CMSIS_NN for Relu,Relu6 #13681
      • Relu6 : [onert-mico] Use CMSIS_NN for Relu,Relu6 #13681
      • Less : [onert-micro] S8 Test for Less #13715
      • Pack : [onert-micro] S8 Test for Pack #13691
      • Unpack ( QUANT caller part is missing) : [onert-mico] S8 test for Unpack #13692
      • L2Pool2D(NYI)
      • Conv2D
      • DepthwiseConv2D
      • Concatenation : [onert-micro] S8 Concat Test #13683
      • AveragePool2D
      • MaxPool2D
      • Sub ( QUANT caller part is missing) : [onert-micro] Quantized S8 for Sub #13682
      • SpaceToDepth : [onert-micro] S8 Test for SpaceToDepth #13696
      • SVDF (quant part missing)
      • Reshape : [onert-micro] S8 Test for Reshape #13701