feat(built-in-interfaces): seção e referências iniciais

Seção, descrição e referências iniciais da seção de Built-in interfaces.

Issue #21

Author: rinaldodev

book/04-lambda/sections/03-built-in-interfaces.asc

@@ -0,0 +1,27 @@
+:java-package: src/org/j6toj8/lambda
+:section-java-package: ../../../{java-package}
+
+=== Interfaces Funcionais Pré-Construídas (Built-in Interfaces)
+
+.Objetivo
+--------------------------------------------------
+Develop code that uses the built-in interfaces included in the java.util.function package, such as Function, Consumer, Supplier, UnaryOperator, Predicate, and Optional APIs, including the primitive and binary variations of the interfaces
+-
+Desenvolver código que usa as interfaces embutidas no pacote java.util.function, como Function, Consumer, Supplier, UnaryOperator, Predicate e a API de Optional, incluindo as variações de tipos primitivos e binários das interfaces
+--------------------------------------------------
+
+
+.Referências
+****
+
+* Working with Built-In Functional Interfaces
++
+Boyarsky, Jeanne; Selikoff, Scott. OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide (p. 173). Wiley. Edição do Kindle. 
+
+* https://www.baeldung.com/java-8-functional-interfaces[Functional Interfaces in Java 8.]
+
+* https://docs.oracle.com/javase/8/docs/api/java/util/function/package-summary.html[Package java.util.function.] Java Plataform SE 8.
+
+* http://eherrera.net/ocpj8-notes/04-lambda-built-in-functional-interfaces[Lambda Built-in Functional Interfaces.]
+
+****

ch04-lambda.asc

@@ -2,4 +2,5 @@
 == Lambda
 
 include::book/04-lambda/sections/01-functional-interfaces.asc[]
-include::book/04-lambda/sections/02-lambda-expression.asc[]
+include::book/04-lambda/sections/02-lambda-expression.asc[]
+include::book/04-lambda/sections/03-built-in-interfaces.asc[]