Added basic types.
Remade examle of tree (Type -> BasicType).
Added attribute in 'Type' and 'BasicType'.
Added the field 'NameMainClass' in the class 'Program'.
Remade exampleof tree.
Added basic type 'boolean'.
Remade nodes 'MembersClass' and 'MembersInterface'.
Corrected missprints.
Remade example of tree.
Added splitting lists of members.
Added fictitious constructor.
Remade example of tree.
Minor changes.
Minor changes.
Merge pull request #10 from Lozov-Petr/master

Added basic types.