adding Postgres configurations for dev-environment with sample-data

gradle/profile_dev.gradle

@@ -8,7 +8,14 @@ dependencies {
     compile "com.h2database:h2"
 }
 
-def profiles = 'dev'
+def profiles = "";
+if (project.hasProperty('pgsql')) {
+    profiles += 'pgsql'
+} else if (project.hasProperty('h2file')) {
+    profiles += 'h2file'
+} else {
+    profiles += 'h2mem'
+}
 if (project.hasProperty('no-liquibase')) {
     profiles += ',no-liquibase'
 }
@@ -16,6 +23,8 @@ if (project.hasProperty('tls')) {
     profiles += ',tls'
 }
 
+println 'activating profiles: ' + profiles
+
 springBoot {
     buildInfo {
 		properties {