Implemented all but update from cli client to server;

solidified encryption;
setup deployment mechanism for GCP

credentials/types/credential.go

@@ -1,6 +1,7 @@
 package types
 
 import (
+	"fmt"
 	"time"
 )
 
@@ -8,16 +9,25 @@ const TypePrefixCred = "cred"
 
 type Credential struct {
 	Metadata
-	Username string
-	Email    string
-	Password string `json:"-"`
+	Username  string
+	Email     string
+	Password  string `json:"-"`
+	OTPSecret string `json:"-"`
+}
+
+func (c Credential) String() string {
+	return fmt.Sprintf(
+		"username = %s\nemail = %s\n%s",
+		c.Username, c.Email, c.Metadata,
+	)
 }
 
 type CredentialInput struct {
 	MetadataInput
-	Username string
-	Email    string
-	Password string
+	Username  string
+	Email     string
+	Password  string
+	OTPSecret string
 }
 
 type Metadata struct {
@@ -30,6 +40,13 @@ type Metadata struct {
 	Tag        string
 }
 
+func (m Metadata) String() string {
+	return fmt.Sprintf(
+		"id = %s\nsourceHost = %s\ncreatedAt = %s\nupdatedAt = %s\nprimary = %s\nloginUrl = %s\ntag = %s\n",
+		m.ID, m.SourceHost, m.CreatedAt, m.UpdatedAt, m.Primary, m.LoginURL, m.Tag,
+	)
+}
+
 type MetadataInput struct {
 	Primary    string
 	SourceHost string