Support tensorflow/examples's lite/ios examples

[tucan9389]

Branch strategy

Base Branch

1. Create a base branch (tensorflow/examples)
2. Add tensorflow/examples's ios projects into tensorflow/examples branch

Working Process

1. Select a task from the following table
2. Make a branch, like tensorflow/examples-segmentation, for your task at the latest tensorflow/examples branch
3. Fix some code and make the project using TFLiteSwift-Vision lib
4. git commit and push it
5. Make PR from your branch into tensorflow/examples branch

Table of tensorflow/examples

domain	example name	iOS link	✅	PR	assignee	note
Vision	image_classification	README	✅	https://github.com/tucan9389/TFLiteSwift-Vision/pull/26	@Seonghun23 @tucan9389
Vision	digit_classifier	README	✅	#32	@tucan9389
Vision	gesture_classification	README	.	.	@tucan9389	cannot find tflite model
Vision	image_segmentation	README	✅	#40	@tucan9389
Vision	object_detection	README	✅	#22	@tucan9389
Vision	posenet	README	✅	#23	@tucan9389
Vision	style_transfer	README	✅	#30	@tucan9389
Vision	optical_character_recognition
Vision	pose_estimation	README	.	.	@tucan9389	the project is broken (21.09.13)
Vision	super_resolution
NLP	bert_qa
NLP	smart_reply
NLP	text_classification
Sound	sound_classification
Sound	speech_commands
other	recommendation
other	reinforcement_learning
other	model_personalization

@Seonghun23

[tucan9389]

@Seonghun23

I think we need to change indent space to 2 for tensorflow/examples, because tensorflow/examples source code has 2 spaces indent convention. If you want to change, in Xcode, open preference with command + , and go to Text Editing, and change the Indent wrapped lines by: 2 spaces from 4.