lang/seed7: update to 05_20190818

20190818:

• Interpreter and compiler have been improved to work correct, when a derived struct overrides an element of the parent struct. Many thanks go to Zachary Menzies, for reporting this error and for providing a test program.
• In the FAQ the explanation, why Seed7 uses UTF-32, has been improved. An explanation of the database abstraction layer, which provides an database independent API, has also been added to the FAQ.
• In the manual the chapter about the deprecated function removeAnyFile() has been replaced by a chapter about the function removeTree().
• The program db7.sd7 (Database Inspector) has been improved quote a table name from the catalog when doing a select.
• The program sql7.sd7 has been improved to allow the execution of SQL statements from a file. The function getSqlStatement has been added, which reads a semicolon terminated SQL statement from a file.
• The library tar.s7i has been improved to accept extended headers with meta data (PAX format) also when a tar file is opened as file system with openTar(). The function readMinimumOfHead has been improved to do this.
• A code page for JIS X 0201 encoding has been added to charsets.s7i.
• The program err.sd7 has been improved to contain test cases, where UTF-16 surrogate characters and non Unicode characters are written as Seed7 string escape sequences.
• In sql_oci.c the function sqlOpenOci() has been improved to allow opening a database with host name, port and database name. This way a database can be opened without an entry in tnsnames.ora. The type connectDataRecord and the function setupConnectData() have been added to sql_oci.c.
• The functions sqlOpenMy (in sql_my.c) and sqlOpenPost (in sql_post.c) have been improved to allow opening a database with host name, port and database name. Now host, port and dbName are parameters. Before the functions split the parameter dbName into host and database name. Specifying a port was not possible.
• In sql_odbc.c the function sqlOpenOdbc() has been improved to allow opening a database with ODBC driver name, server name and database name. This way a database can be opened without specifying a data source in the ODBC Data Source Administrator (in the Control Panel). The type connectDataRecord and the functions getRegularName(), wstriSearchCh(), wstriSearch(), connectToServer(), connectToDriver() and driverConnect() have been added to sql_odbc.c. A definition of SQL_NEED_DATA has been added to db_odbc.h.
• In sql_rtl.c the function sqlErrMessage() has been improved to allow database error messages encoded in UTF-8.
• The function sqlOpen() has been removed from sql_rtl.c.
• The function width() has been added to string.s7i and seed7_05.s7i. This function computes the sum of the character widths in a string. A character width can be 0 (for control characters), 1 (for normal printable characters) and 2 (for fullwidth characters, e.g. KANJI).
• The library console.s7i has been improved to use the function