allow RestClient to configure custom headers

allow RestClient to configure custom headers
always load the first implementation on the classpath

Issue-ID: SO-3495
Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
Change-Id: I9c433cdaed33a7db6182af259421676c088a1fae
diff --git a/mso-api-handlers/mso-api-handler-infra/pom.xml b/mso-api-handlers/mso-api-handler-infra/pom.xml
index 678de23..b902564 100644
--- a/mso-api-handlers/mso-api-handler-infra/pom.xml
+++ b/mso-api-handlers/mso-api-handler-infra/pom.xml
@@ -254,19 +254,19 @@
       </exclusions>
     </dependency>
     <dependency>
-        <groupId>org.onap.aaf.authz</groupId>
-        <artifactId>aaf-auth-client</artifactId>
-        <scope>runtime</scope>
+      <groupId>org.onap.aaf.authz</groupId>
+      <artifactId>aaf-auth-client</artifactId>
+      <scope>runtime</scope>
     </dependency>
     <dependency>
-        <groupId>org.onap.aaf.authz</groupId>
-        <artifactId>aaf-misc-env</artifactId>
-        <scope>runtime</scope>
+      <groupId>org.onap.aaf.authz</groupId>
+      <artifactId>aaf-misc-env</artifactId>
+      <scope>runtime</scope>
     </dependency>
     <dependency>
-        <groupId>org.onap.aaf.authz</groupId>
-        <artifactId>aaf-misc-rosetta</artifactId>
-        <scope>runtime</scope>
+      <groupId>org.onap.aaf.authz</groupId>
+      <artifactId>aaf-misc-rosetta</artifactId>
+      <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>javax.xml.bind</groupId>