Aflex 1.7

• Fix #5: Ada.Text_IO. missing in a template
• Feature #6: Maybe support larger integer types for yylineno
  Add %option yylinenotype=TYPE and %yydfa code block to customize the type
  of the yylineno variable.
• Fix #8: %reentrant causes a syntax error in parser-lexer_io.ads

Aflex 1.6

• Fix #2: Missing Input_Line function when -E option is used
• Support the flex options %option output, %option nooutput, %option yywrap, %option noinput,
  %option noyywrap, %option unput, %option nounput, %option bufsize=NNN to better control the
  generated _IO package.
• Aflex templates provide more control for tuning the code generation and
  they are embedded with Advanced Resource Embedder
• Support to define Ada code block in the scanner that is inserted in the generated scanner
• New option -P to generate a private Ada package for DFA and IO
• New directive %option reentrant and %yyvar to generate a recursive scanner
• New directive %yydecl to allow passing parameters to YYLex
  or change the default function name
• Reformat code using gnatpp