feat(bindings): move bindings to root package

#184

asyncapi-core/src/main/java/com/asyncapi/bindings/ChannelBinding.java

@@ -0,0 +1,18 @@
+package com.asyncapi.bindings;
+
+import com.asyncapi.v3.ExtendableObject;
+import lombok.EqualsAndHashCode;
+
+/**
+ * Describes protocol-specific definition for a channel.
+ * <p>
+ * This object MAY be extended with {@link ExtendableObject}.
+ *
+ * @see <a href="https://www.asyncapi.com/docs/reference/specification/v3.0.0#specificationExtensions">Specification Extensions</a>
+ * @see <a href="https://www.asyncapi.com/docs/reference/specification/v3.0.0#channelBindingsObject">Channel Binding</a>
+ * @author Pavel Bodiachevskii
+ * @version 3.0.0
+ */
+@EqualsAndHashCode(callSuper = true)
+public class ChannelBinding extends ExtendableObject {
+}

asyncapi-core/src/main/java/com/asyncapi/bindings/MessageBinding.java

@@ -0,0 +1,13 @@
+package com.asyncapi.bindings;
+
+import com.asyncapi.v3.ExtendableObject;
+import lombok.EqualsAndHashCode;
+
+/**
+ * Describes AsyncAPI message binding.
+ *
+ * @author Pavel Bodiachevskii
+ */
+@EqualsAndHashCode(callSuper = true)
+public class MessageBinding extends ExtendableObject {
+}

asyncapi-core/src/main/java/com/asyncapi/bindings/OperationBinding.java

@@ -0,0 +1,18 @@
+package com.asyncapi.bindings;
+
+import com.asyncapi.v3.ExtendableObject;
+import lombok.EqualsAndHashCode;
+
+/**
+ * Describes protocol-specific definition for an operation.
+ * <p>
+ * This object MAY be extended with {@link ExtendableObject}.
+ *
+ * @see <a href="https://www.asyncapi.com/docs/reference/specification/v3.0.0#specificationExtensions">Specification Extensions</a>
+ * @see <a href="https://www.asyncapi.com/docs/reference/specification/v3.0.0#operationBindingsObject">Operation Binding</a>
+ * @author Pavel Bodiachevskii
+ * @version 3.0.0
+ */
+@EqualsAndHashCode(callSuper = true)
+public class OperationBinding extends ExtendableObject {
+}

asyncapi-core/src/main/java/com/asyncapi/bindings/ServerBinding.java

@@ -0,0 +1,18 @@
+package com.asyncapi.bindings;
+
+import com.asyncapi.v3.ExtendableObject;
+import lombok.EqualsAndHashCode;
+
+/**
+ * Describes protocol-specific definition for a server.
+ * <p>
+ * This object MAY be extended with {@link ExtendableObject}.
+ *
+ * @see <a href="https://www.asyncapi.com/docs/reference/specification/v3.0.0#specificationExtensions">Specification Extensions</a>
+ * @see <a href="https://www.asyncapi.com/docs/reference/specification/v3.0.0#serverBindingsObject">Server Binding</a>
+ * @author Pavel Bodiachevskii
+ * @version 3.0.0
+ */
+@EqualsAndHashCode(callSuper = true)
+public class ServerBinding extends ExtendableObject {
+}