created org.smoothbuild.function package, moved function related classes there
renamed package org.smoothbuild.registry.instantiate -> org.smoothbuild.expression
moved Param, Params, Type, FullyQualifiedName to .function package
moved @ExecuteMethod, @FunctionName to .lang.type package
renamed package .lang.type -> .plugin
renamed .lang.internal package to .fs.plugin
added .builtin.file.exc package
added .builtin.compress package and moved [Zip/Unzip]Function there