[LANG-1784] Add Functions|Failable methods for null-safe mapping and

chaining #1435

Use the same naming style of Objects.requireNonNull()

Author: garydgregory

src/changes/changes.xml

@@ -88,6 +88,8 @@ The <action> type attribute can be add,update,fix,remove.
     <action                   type="add" dev="ggregory" due-to="Gary Gregory">Add ByteSupplier.</action>
     <action                   type="add" dev="ggregory" due-to="Gary Gregory">Add FailableByteConsumer.</action>
     <action                   type="add" dev="ggregory" due-to="Gary Gregory">Add FailableByteSupplier.</action>
+    <action issue="LANG-1784" type="add" dev="ggregory" due-to="Rich Dougherty, Gary Gregory">Add Functions methods for null-safe mapping and chaining #1435.</action>
+    <action issue="LANG-1784" type="add" dev="ggregory" due-to="Rich Dougherty, Gary Gregory">Add Failable methods for null-safe mapping and chaining #1435.</action>
     <!-- UPDATE -->
     <action type="update" dev="ggregory" due-to="Gary Gregory">[test] Bump org.apache.commons:commons-text from 1.13.1 to 1.14.0.</action>
     <action type="update" dev="ggregory" due-to="Gary Gregory">Bump org.apache.commons:commons-parent from 85 to 87.</action>