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/UPT/Library/Xml/XmlRoutines.py

@@ -40,7 +40,7 @@ def CreateXmlElement(Name, String, NodeList, AttributeList):
         Element.appendChild(Doc.createTextNode(String))
 
     for Item in NodeList:
-        if type(Item) == type([]):
+        if isinstance(Item, type([])):
             Key = Item[0]
             Value = Item[1]
             if Key != '' and Key is not None and Value != '' and Value is not None: