Adding Prettier and fixing up eslint version

Issue-ID: SDC-1094
Change-Id: Ie83ad95a03899345dd90235daf0323cbe3bc6afd
Signed-off-by: Einav Weiss Keidar <einavw@amdocs.com>
diff --git a/openecomp-ui/.prettierrc b/openecomp-ui/.prettierrc
new file mode 100644
index 0000000..0a7b3ae
--- /dev/null
+++ b/openecomp-ui/.prettierrc
@@ -0,0 +1,5 @@
+{
+  "singleQuote": true,
+  "jsxBracketSameLine": true,
+  "tabWidth": 4
+}