[Feature]Add a compile switch for fdk-aac 1.x

[nkh0472]

The existing fdkaac is not linked to the fdk-aac 1.X library, and 1.x version of the library is no longer maintained and updated, so it is not necessary to generate an old version dll every time.

Add a simple command line switch so we can choose to compile version 1.X or version 2.X. Of course it is also possible to add another switch to control whether we compile fdkaac or not.

[nkh0472]

Merge this issue into #12.