feat[classfile]: PrettySerialize instances

only a little bit broken formatting

package.yaml

@@ -19,11 +19,8 @@ synopsis:            Multi-Stage classfile parsing and verification.
 description:         Please see the README on Forgejo at <https://git.jossco.de/vegowotenks/java-classfile#readme>
 
 dependencies:
-- array
 - base >= 4.7 && < 5
 - bytestring
-- containers
-- text
 
 ghc-options:
 - -Wall
@@ -35,9 +32,15 @@ ghc-options:
 - -Wmissing-home-modules
 - -Wpartial-fields
 - -Wredundant-constraints
+- -Wunused-packages
 
 library:
   source-dirs: src
+  dependencies:
+  - array
+  - containers
+  - pretty-parse
+  - text
 
 executables:
   java-classfile-exe:
@@ -49,6 +52,8 @@ executables:
     - -with-rtsopts=-N
     dependencies:
     - java-classfile
+    - pretty-parse
+    - text
 
 tests:
   java-classfile-test: