Add int overload to TextLayer.letterSpacing()

Author: nitzanj

cloudinary-core/src/main/java/com/cloudinary/transformation/TextLayer.java

@@ -77,6 +77,11 @@ public TextLayer letterSpacing(String letterSpacing) {
         return getThis();
     }
 
+    public TextLayer letterSpacing(int letterSpacing) {
+        this.letterSpacing = String.valueOf(letterSpacing);
+        return getThis();
+    }
+
     public TextLayer lineSpacing(Integer lineSpacing) {
         this.lineSpacing = lineSpacing;
         return getThis();

cloudinary-core/src/test/java/com/cloudinary/test/CloudinaryTest.java

@@ -994,6 +994,9 @@ public void testOverlayOptions() {
                 new TextLayer().text("Hello World, Nice to meet you?").fontFamily("Arial").fontSize(18)
                         .fontWeight("bold").fontStyle("italic").letterSpacing("4").lineSpacing(3),
                 "text:Arial_18_bold_italic_letter_spacing_4_line_spacing_3:Hello%20World%252C%20Nice%20to%20meet%20you%3F",
+                new TextLayer().text("Hello World, Nice to meet you?").fontFamily("Arial").fontSize(18)
+                        .fontWeight("bold").fontStyle("italic").letterSpacing(4).lineSpacing(3),
+                "text:Arial_18_bold_italic_letter_spacing_4_line_spacing_3:Hello%20World%252C%20Nice%20to%20meet%20you%3F",
                 new SubtitlesLayer().publicId("sample_sub_en.srt"), "subtitles:sample_sub_en.srt",
                 new SubtitlesLayer().publicId("sample_sub_he.srt").fontFamily("Arial").fontSize(40),
                 "subtitles:Arial_40:sample_sub_he.srt",