Redefinition of typedef is a C11 feature

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直接引入FSCalendar组件，出现1错误；导入FSCalendar.Framework，出现1错误。

Error:

1. Redefinition of typedef is a C11 feature

search：https://github.com/WenchaoD/FSCalendar/issues/709

2.如上配置之后，出现 Ambiguous expansion of macro 'MAX'

reason：系统及引入的库都有 MAX 的宏定义

search：https://phonegapcmsworld.blogspot.com/2016/06/warning-sqlite3c-ambiguous-expansion-of.html

resolve：add “-Wno-ambiguous-macro” into  “Other C flags”

3. Missing submodule 'AVFoundation.AVAudioSession'

search：https://github.com/hackiftekhar/IQAudioRecorderController/issues/38

resolve：用 #import <AVFoundation/AVFoundation.h> 替代