Create new datatypes module for Address, Hash, and Wei (#2779)

* Create new datatypes module

Create a new `datatypes` module to hold datatypes that are broadly used.
This will aid modularization by making sure the base types in the module
minimize the amount of unrelated support classes needed.

Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>

* Add Address, Hash, and Wei to datatypes

Move the Address, Hash, and Wei to datatypes in as they are needed for
EVM modularization.

Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>

datatypes/build.gradle

@@ -0,0 +1,45 @@
+/*
+ * Copyright contributors to Hyperledger Besu
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+apply plugin: 'java-library'
+
+jar {
+  archiveBaseName = 'besu-datatypes'
+  manifest {
+    attributes(
+      'Specification-Title': archiveBaseName,
+      'Specification-Version': project.version,
+      'Implementation-Title': archiveBaseName,
+      'Implementation-Version': calculateVersion()
+      )
+  }
+}
+
+dependencies {
+  api project(':plugin-api')
+
+  compileOnly 'com.fasterxml.jackson.core:jackson-databind'
+
+  implementation project(':crypto')
+  implementation project(':ethereum:rlp')
+
+  implementation 'org.apache.tuweni:tuweni-bytes'
+  implementation 'org.apache.tuweni:tuweni-units'
+
+  testImplementation 'junit:junit'
+  testImplementation 'org.assertj:assertj-core'
+}
+
+configurations { testArtifacts }