Fix Chrome and Firefox on Windows

Add standard "Program Files" location on Windows to find chrome.exe and firefox.exe

cmake/modules/RootConfiguration.cmake

@@ -422,12 +422,16 @@ set(dicttype ${ROOT_DICTTYPE})
 find_program(PERL_EXECUTABLE perl)
 set(perl ${PERL_EXECUTABLE})
 
-find_program(CHROME_EXECUTABLE NAMES chromium chromium-browser chrome chrome-browser Google\ Chrome)
+find_program(CHROME_EXECUTABLE NAMES chrome.exe chromium chromium-browser chrome chrome-browser Google\ Chrome
+             PATHS "$ENV{PROGRAMFILES}/Google/Chrome/Application"
+             "$ENV{PROGRAMFILES\(X86\)}/Google/Chrome/Application")
 if(CHROME_EXECUTABLE)
   set(chromeexe ${CHROME_EXECUTABLE})
 endif()
 
-find_program(FIREFOX_EXECUTABLE NAMES firefox firefox.exe)
+find_program(FIREFOX_EXECUTABLE NAMES firefox firefox.exe
+             PATHS "$ENV{PROGRAMFILES}/Mozilla Firefox"
+             "$ENV{PROGRAMFILES\(X86\)}/Mozilla Firefox")
 if(FIREFOX_EXECUTABLE)
   set(firefoxexe ${FIREFOX_EXECUTABLE})
 endif()