Add warrant token support (#28)

* Create RequestOptions

* Update base client to add methods with support for RequestOptions

* Update client to add methods with support for RequestOptions

* Update live test to include request options usage

* Update request helper methods to use overloaded methods

* Update Collections.EMPTY_MAP to Collections.emptyMap()

* Update overloaded methods to call one method with most params

* Add support for listing warrants

* Call correct overloaded method

---------

Co-authored-by: Karan Kajla <[email protected]>

src/main/java/dev/warrant/ListParams.java

@@ -4,16 +4,17 @@
 import java.util.Map;
 
 public class ListParams {
-    private int page;
-    private int limit;
+    private int page = 0;
+    private int limit = 0;
     private String beforeId;
     private String beforeValue;
     private String afterId;
     private String afterValue;
     private String sortBy;
     private String sortOrder;
 
-    public ListParams() {}
+    public ListParams() {
+    }
 
     public ListParams withPage(int page) {
         this.page = page;

src/main/java/dev/warrant/RequestOptions.java

@@ -0,0 +1,25 @@
+package dev.warrant;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class RequestOptions {
+    private String warrantToken;
+
+    public RequestOptions() {}
+
+    public RequestOptions withWarrantToken(String warrantToken) {
+        this.warrantToken = warrantToken;
+        return this;
+    }
+
+    public Map<String, Object> asMap() {
+        Map<String, Object> options = new HashMap<>();
+
+        if (this.warrantToken != null) {
+            options.put("Warrant-Token", warrantToken);
+        }
+
+        return options;
+    }
+}