BaseTools: Update BrotliCompress script to handle the different input format

After this update, BrotliCompress can support below styles.
BrotliCompress -e InputFile -o OutputFile
BrotliCompress -e -o OutputFile InputFile

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

BaseTools/Source/C/BrotliCompress/BrotliCompress.bat

@@ -16,12 +16,16 @@
 
 set QLT=-q 9
 set INPUTFLAG=0
+set ARGS=
 
 :Begin
 if "%1"=="" goto End
 
 if "%1"=="-d" (
   set INPUTFLAG=1
+  set ARGS=%ARGS% %1
+  shift
+  goto Begin
 )
 
 if "%1"=="-e" (
@@ -51,17 +55,15 @@ if "%1"=="-q" (
   goto Begin
 )
 
-if %INPUTFLAG%==1 (
- if "%2"=="" (
-    set ARGS=%ARGS% %QLT% -i %1
-    goto End
-  )
+if %INPUTFLAG% == 1 (
+  set ARGS=%ARGS% -i %1
+  set INPUTFLAG=0
+) else (
+  set ARGS=%ARGS% %1
 )
-
-set ARGS=%ARGS% %1
 shift
 goto Begin
 
 :End
-Brotli %ARGS%
+Brotli %ARGS% %QLT%
 @echo on