[onert] Make model-types optional in MANIFEST

[glistening]

It make model-types option by infering model-types from model file.
It uses the file extension for inference.

ONE-DCO-1.0-Signed-off-by: Sanggyu Lee sg5.lee@samsung.com

BEFORE

$ cat tinyllama/prefill/metadata/MANIFEST
{
  "models"      : [
      "emb.circle",
      "d0.circle",
      "d1.circle",
      "d2.circle",
      "d3.circle",
      "d4.circle",
      "d5.circle",
      "d6.circle",
      "d7.circle",
      ],
  "model-types" : [
     "circle",
     "circle",
     "circle",
     "circle",
     "circle",
     "circle",
     "circle",
     "circle",
     "circle",
     ],
  ...

AFTER

$ cat tinyllama/prefill/metadata/MANIFEST
{
  "models"      : [
      "emb.circle",
      "d0.circle",
      "d1.circle",
      "d2.circle",
      "d3.circle",
      "d4.circle",
      "d5.circle",
      "d6.circle",
      "d7.circle",
      ],
  ...

[hseok-oh]

Will we update nnpackage spec?

BTW, I cannot find documents about nnpackage versioning (only can find hint from nnpackage/examples/README.md)

[glistening]

https://github.com/Samsung/ONE/blob/master/nnpackage/spec/10_packaging_and_manifest.md

It has 3 commits:

https://github.com/Samsung/ONE/commits/master/nnpackage/spec/10_packaging_and_manifest.md

I will update the spec based on commit history and examples in another PR.

1. specify model-types are optional

ONE/nnpackage/spec/10_packaging_and_manifest.md

Lines 76 to 86 in b2632a4

	#### model-types
	`model-types` is an array of strings that describes the type of each model in `models`.
	It can have the values (case-sensitive) in following table.
	| name | description |
	|--------|------------------------|
	| tflite | tensorflow lite schema |
	| circle | nnpackage schema |
	| tvn | trix-engine binary |

2. add missing attributes (like model-connect, ...)

3. add version information (e.g. since 1.1.0)

It would be better to follow the way of circle_schema.fbs.

[hseok-oh]

LGTM