add new task files

cutadapt.wdl

+task cutadapt {
+    String? format
+    Int? cores = 1
+    String? adapter3end
+    String? adapter5end
+    String? adapterAnywhere
+    Float? errorRate
+    Boolean? noIndels
+    Int? count
+    Int? minLength
+    Boolean? matchReadWildcards
+    Boolean? noMatchAdapterWildcards
+    Boolean? noTrim
+    String? maskAdapter
+    Int? cutLength
+
+}
\ No newline at end of file