release package-manager-0.1-rc1

[LGala]

• icaro use @latest to install the latest icaro version on your device
  • ensure to delete, if exists, the version you are installing or to not do anything since it's already installed
  • ensure the icaro alias
    • is written on newline into the rc file
    • is written no more that 1 time
  • move the installers here
  • test
• icaro new/init <name> to create a new icaro project with the given name:
  • ensure there's no other folders with that name
  • src folder with main.ic
  • test
• icaro build for compiling the code starting from main.ic
  • create a bin folder with the .class files or .jar file
  • test
• icaro run for running the compiled code into the project
  • test