fix: typo Signer and Document (#67)

* fix: typo Signer and Document

* up: mark Signed_timestamp as deprecated

Co-authored-by: Julien SCHERMANN <[email protected]>

Author: Snowbaha

sdk/Eversign/Document.php

@@ -515,7 +515,7 @@ public function getMeta() {
     }
 
     public function getFlexibleSigning() {
-        return $this->getFlexibleSigning;
+        return $this->flexibleSigning;
     }
 
     public function appendMeta($key, $value) {

sdk/Eversign/Signer.php

@@ -179,6 +179,11 @@ public function getSigned() {
         return !!$this->signed;
     }
 
+    public function getSignedTimestamp() {
+        return $this->signed_timestamp;
+    }
+
+    /** @deprecated use getSignedTimestamp instead */
     public function getSigned_timestamp() {
         return $this->signed_timestamp;
     }
@@ -235,6 +240,11 @@ public function setSigned($signed) {
         $this->signed = !!$signed;
     }
 
+    public function setSignedTimestamp($signed_timestamp) {
+        $this->signed_timestamp = $signed_timestamp;
+    }
+
+    /** @deprecated use setSignedTimestamp instead */
     public function setSigned_timestamp($signed_timestamp) {
         $this->signed_timestamp = $signed_timestamp;
     }