Add stencil on color

Templates/Colors/main_template

@@ -0,0 +1,21 @@
+// Generated by ResgenSwift.{{ toolName }} {{ resgenVersion }}
+{% if isSwiftUI %}
+import SwiftUI
+{% else %}
+import UIKit
+{% endif %}
+extension {{ extensionClassname }} {
+{% for color in colors %}
+    {% if isSwiftUI %}
+    /// Color {{ color.name }} is {{ color.light }} {{ color.light }} or {{ color.dark }} {{ color.dark }}"
+    {% if isStatic %}static {% endif %}var {{ color.name }}: Color {
+        Color("{{ color.name }}")
+    }
+    {% else %}
+    /// Color {{ color.name }} is {{ color.light }} {{ color.light }} or {{ color.dark }} {{ color.dark }}"
+    {% if isStatic %}static {% else %}@objc {% endif %}var {{ color.name }}: UIColor {
+        UIColor(named: "{{ color.name }}")!
+    }
+    {% endif %}
+{% endfor %}
+}

Templates/Colors/swiftui_template

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+    /// Color {{ color.name }} is {{ color.light }} {{ color.light }} or {{ color.dark }} {{ color.dark }}"
+    {% if isStatic %}static {% endif %}var {{ color.name }}: Color {
+        Color("{{ color.name }}")
+    }

Templates/Colors/uikit_template

@@ -0,0 +1,4 @@
+    /// Color {{ color.name }} is {{ color.light }} {{ color.light }} or {{ color.dark }} {{ color.dark }}"
+    {% if isStatic %}static {% else %}@objc {% endif %}var {{ color.name }}: UIColor {
+        UIColor(named: "{{ color.name }}")!
+    }