상품 등록 업로드 기능 일부 완료(1개 사진 전송 성공, 다수 전송시 OutofMemory 해결중
Merge branch 'feature/man4' of https://github.com/Ganco/KNU_Market into feature/man2

Conflicts:
	app/src/main/java/com/harold/knumarket/MainActivity.java
	app/src/main/java/com/harold/knumarket/User_Info.java
	build/intermediates/model_data.bin