Python Linting and Code Formatting (#298)

* Create common print_diff function

* Add pylint and black

* Fix linting, move classes to utils

* Add black/pylint to github actions

* Fix linting

* Move Bin and SymInfo into their own files

* Split out format

* Tidy up workdlows and pip, add readme

* Lint tests, add tests to readme

tools/README.md

@@ -0,0 +1,50 @@
+# LEGO Island Decompilation Tools
+
+These are a set of Python tools for helping with the decomp project
+
+## Installing
+Use pip to install the required packages:
+
+```
+pip install -r tools/requirements.txt
+```
+
+## reccmp
+This is a script to compare the original EXE or DLL with a recpmpiled EXE or DLL, provided a .PDB file
+
+## verexp
+This verifies exports by comparing the exports of an original DLL and the recompiled DLL
+
+## checkorder
+This checks the order of C++ source and header files to make sure the functions are in order
+
+## isledecomp
+This is a library that is used by rhe above scripts. it has a collection of useful classes and functions
+
+### Testing
+`isledecomp` has a small suite of tests. Install pylint and run it, passing in the directory:
+
+```
+pip install pytest
+pytest tools/isledecomp/tests/
+```
+
+## Development
+In order to keep the code clean and consistent, we use `pylint` and `black`:
+
+```
+pip install black pylint
+```
+### To run pylint (ignores build and virtualenv):
+```
+pylint tools/ --ignore=build,bin,lib
+```
+
+### To check code formatting without rewriting files:
+```
+black --check tools/
+```
+### To apply code formatting:
+```
+black tools/
+```