Merge pull request 'Add lndhub and lockbox configs for test environment' (#48) from bugfix/lndhub_specs into master

Reviewed-on: #48

.env.test

@@ -1 +1,3 @@
 EJABBERD_API_URL='http://xmpp.example.com/api'
+LNDHUB_API_URL='http://localhost:3023'
+LNDHUB_PUBLIC_URL='https://lndhub.kosmos.org'

config/credentials/test.key

@@ -0,0 +1 @@
+6b101c9addbfa5f959b5859f756bc9d7

config/credentials/test.yml.enc

@@ -0,0 +1 @@
+xgPOFd8315z7lFtTR5/nD6WDBM2M6Grt/pmkCPdaqlw0WAmFKzbiRGFsXoUQ02JNzvT1/FVtBSsAcyK1Pdr1QQztlWC+/ywaflloMBS4//D8IEXvEgCK6uff5gcf1A==--WbFrw9advCJ4mqsK--HTVHZqO0ddG1toFpY0KKgQ==