Proto commits in nnstreamer/nnstreamer

These 6 commits are when the Protocol Buffers files have changed:

Commit:2779668
Author:gichan2-jang
Committer:MyungJoo Ham

Fix typos Fux typos in flatbuf and protobuf schema. Since tensor type are managed as enum value from the generated header, There is no problem changing tensor type name . Signed-off-by: gichan2-jang <gichan2.jang@samsung.com>

The documentation is generated from this commit.

Commit:f416139
Author:Jaeyun Jung
Committer:MyungJoo Ham

[Protobuf] missing tensor type Add missing tensor type 'float16' when generating protobuf and flatbuf code. Signed-off-by: Jaeyun Jung <jy1210.jung@samsung.com>

Commit:2bedc61
Author:gichan
Committer:MyungJoo Ham

[Protobuf] Support flextensors for protobuf. Support flexible tensors for protobuf. Signed-off-by: gichan <gichan2.jang@samsung.com> Signed-off-by: Gichan Jang <gichan2.jang@samsung.com>

Commit:ff5c1fd
Author:Dongju Chae
Committer:MyungJoo Ham

[gRPC/protobuf] Implement a helper class for NNStreamer gRPC service This patch implements a helper class for NNStreamer gRPC service. It appends the definition of gRPC service to 'nnstreamer.proto'. Signed-off-by: Dongju Chae <dongju.chae@samsung.com>

Commit:8ee5ff4
Author:gichan-jang
Committer:MyungJoo Ham

[Converter] Add tensor converter sub-plugin protobuf Add tensor converter subplugin protobuf Add protobuf unittest Signed-off-by: gichan-jang <gichan2.jang@samsung.com>

Commit:7c26946
Author:Yongjoo Ahn
Committer:MyungJoo Ham

[Decoder/protobuf] Add protobuf tensor_decoder sub-plugin - Add tensor_decoder sub-plugin "protobuf" to support Protocol Buffers Signed-off-by: Yongjoo Ahn <yongjoo1.ahn@samsung.com>