added AdmFragmentTemplate interface

src/main/java/dk/camelot64/kickc/fragment/AsmFragmentTemplateFactory.java

@@ -0,0 +1,26 @@
+package dk.camelot64.kickc.fragment;
+
+import dk.camelot64.kickc.fragment.signature.AsmFragmentSignature;
+import dk.camelot64.kickc.model.TargetCpu;
+
+/**
+ * Abstract factory for creating ASM fragment templates from signatures.
+ */
+public interface AsmFragmentTemplateFactory {
+
+    /**
+     * Get the CPU that the factory produces templates for
+     *
+     * @return The target CPU
+     */
+    TargetCpu getCpu();
+
+    /**
+     * Get an ASM template from a signature.
+     *
+     * @param signature The signature describing the ASM fragment
+     * @return The ASM fragment template that can be used for generating ASM
+     */
+    AsmFragmentTemplate getTemplate(AsmFragmentSignature signature);
+
+}