Release 0.60

* Add date as a dependency, make fetch friendly
* Update travis
* fixed rbock#342: ambiguous comparison operators (c++20)
* Add support for parameterized_verbatim
* Add some MYSQL types to the ddl2cpp script

Release 0.59

Add -identity-naming argument from ddl2cpp to sqlite2cpp.py
Add wishlist.md
Add vcpkg installation instructions
Add minimal over() implementation for aggregate functions
Multiple bug fixes

Various enhacements

 - new data types for ddl2cpp
 - new option to generate one header file per table
 - support for string_view
 - support for INSERT INTO from SELECT
 - multiple examples

Maintenance release

Fix merge error in 0.55

Blob support, multiple new datatypes and small fixes

- ddl2cpp:
  - add multiple data types
  - option to not camel-case SQL names in C++
  - allow digits in names
- Allow tuples to be passed to insert_set
- Fix some static_assert messages

Use date/date.h (as in date 2.4)

Small fixes

Trim function (Juan Dent)

Hopefully fixed compile issues with VC++

support for date/datetime/timestamp types added for ppgen

Fix without_table_check for alias expressions
several automated edits using clang-format

Silence a couple of warnings (clang-tidy and gcc-6.x)