BaseTools:Extend the binary cache to support library cache
    
    https://bugzilla.tianocore.org/show_bug.cgi?id=1797
    
    Current binary cache doesn't support to save and restore
    the library module. If a driver module cache miss happen,
    all its dependency library modules need rebuild which
    is very time-consuming. This patch is to extend the binary
    cache to support library.
    
    Cc: Liming Gao <liming.gao@intel.com>
    Cc: Bob Feng <bob.c.feng@intel.com>
    Cc: Christian Rodriguez <christian.rodriguez@intel.com>
    Signed-off-by: Steven Shi <steven.shi@intel.com>
    Reviewed-by: Bob Feng <bob.c.feng@intel.com>