ICU-20322 Add icudt*.dll and srtest.exe to .gitignore file.
diff --git a/.gitignore b/.gitignore
index 668adf6..9b5f16c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -103,6 +103,7 @@
icu4c/source/extra/scrptrun/srtest
icu4c/source/extra/scrptrun/srtest.d
icu4c/source/extra/scrptrun/srtest.o
+icu4c/source/extra/scrptrun/srtest.exe
icu4c/source/extra/uconv/*.d
icu4c/source/extra/uconv/*.o
icu4c/source/extra/uconv/*.vcxproj.user
@@ -420,6 +421,7 @@
icu4c/source/stubdata/Release
icu4c/source/stubdata/cygicudata*.*
icu4c/source/stubdata/debug
+icu4c/source/stubdata/icudt*.dll
icu4c/source/stubdata/libicu*.*
icu4c/source/stubdata/libsicu*.*
icu4c/source/stubdata/release