Add files for the Dockerfile and few modifications to the sol_got_ove…

[Bianca964]

…rwrite.py for 02-rwslotmachine2

Prerequisite Checklist

• Read the contribution guidelines regarding submitting new changes to the project;
• Tested your changes against relevant architectures and platforms;
• Updated relevant documentation (if needed).

Description of changes

[razvand]

Update your commit message. Use a prefix 02-rwslotmachine2: . Add a commit description. Follow instructions here.

Use a proper name for authoring and signing off the commit, i.e. use Bianca Farcasanu <biancaioana04@gmail.com> instead of Bianca Ioana <biancaioana04@gmail.com>.

Add a Makefile.sol that is used to build the binary. Copy that in the Dockerfile (as Makefile and run make in the Dockerfile instead of gcc.

Create two commits. One specific to the Dockerfile and one specific to the solution updates.