refactor: use snake case object mappers

Author: javorosas

src/main/java/io/facturapi/http/FacturapiConfig.java

@@ -2,6 +2,7 @@
 
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import io.facturapi.ApiVersion;
@@ -108,6 +109,7 @@ public FacturapiConfig build() {
 
       ObjectMapper resolvedMapper = new ObjectMapper()
         .registerModule(new JavaTimeModule())
+        .setPropertyNamingStrategy(PropertyNamingStrategies.SNAKE_CASE)
         .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
         .disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
 

src/main/java/io/facturapi/models/complements/InvoiceComplement.java

@@ -8,6 +8,7 @@
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import io.facturapi.models.complements.carta_porte.CartaPorteComplementData;
 import io.facturapi.models.complements.comercio_exterior.ComercioExteriorComplementData;
@@ -19,6 +20,7 @@
 public class InvoiceComplement {
   private static final ObjectMapper MAPPER = new ObjectMapper()
     .registerModule(new JavaTimeModule())
+    .setPropertyNamingStrategy(PropertyNamingStrategies.SNAKE_CASE)
     .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 
   private String type;

src/main/java/io/facturapi/models/complements/comercio_exterior/ComercioExteriorComplementData.java

@@ -7,6 +7,7 @@
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import java.util.ArrayList;
 import java.util.List;
@@ -15,6 +16,7 @@
 public class ComercioExteriorComplementData {
   private static final ObjectMapper MAPPER = new ObjectMapper()
     .registerModule(new JavaTimeModule())
+    .setPropertyNamingStrategy(PropertyNamingStrategies.SNAKE_CASE)
     .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 
   @JsonProperty("Version")