Add more tests

Author: raynigon

unit-api-core/src/test/groovy/com/raynigon/unit_api/core/function/unitconverter/MultiplyConverterSpec.groovy

@@ -6,7 +6,73 @@ import spock.lang.Specification
 class MultiplyConverterSpec extends Specification {
 
     @Ignore
-    def 'test'() {
+    def 'ofRational - RationalNumber'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'ofRational - long'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'ofRational - big integer'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'of - number'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'of - double'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'ofPrefix'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'ofPiExponent'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'ofExponent'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'ofTenExponent'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'identity'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'isLinear'() {
+        expect:
+        false
+    }
+
+    @Ignore
+    def 'getFactor'() {
         expect:
         false
     }