BaseTools: Fix old python2 idioms

Based on "futurize -f lib2to3.fixes.fix_idioms"

* Change some type comparisons to isinstance() calls:
    type(x) == T -> isinstance(x, T)
    type(x) is T -> isinstance(x, T)
    type(x) != T -> not isinstance(x, T)
    type(x) is not T -> not isinstance(x, T)

* Change "while 1:" into "while True:".

* Change both

    v = list(EXPR)
    v.sort()
    foo(v)

and the more general

    v = EXPR
    v.sort()
    foo(v)

into

    v = sorted(EXPR)
    foo(v)

Contributed-under: TianoCore Contribution Agreement 1.1
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>

BaseTools/Source/Python/GenFds/GenFds.py

@@ -785,7 +785,7 @@ class GenFds :
                         if not Name:
                             continue
 
-                        Name = ' '.join(Name) if type(Name) == type([]) else Name
+                        Name = ' '.join(Name) if isinstance(Name, type([])) else Name
                         GuidXRefFile.write("%s %s\n" %(FileStatementGuid, Name))
 
        # Append GUIDs, Protocols, and PPIs to the Xref file