Fix build with gcc10

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/build/chipmachine-git/src/chipmachine/src/di.hpp: In member function ‘boost::di::v1_1_0::core::binder::resolve_template_t<boost::di::v1_1_0::core::injector<TConfig, boost::di::v1_1_0::core::pool<boost::di::v1_1_0::aux::type_list<> >, TDeps ...>, boost::di::v1_1_0::aux::identity<T<> > > boost::di::v1_1_0::core::injector<TConfig, boost::di::v1_1_0::core::pool<boost::di::v1_1_0::aux::type_list<> >, TDeps ...>::create() const’:
/build/chipmachine-git/src/chipmachine/src/di.hpp:3487:51: error: ‘boost::di::v1_1_0::core::binder::resolve_template_t<boost::di::v1_1_0::core::injector<TConfig, boost::di::v1_1_0::core::pool<boost::di::v1_1_0::aux::type_list<> >, TDeps ...>, boost::di::v1_1_0::aux::identity<T<> > > boost::di::v1_1_0::core::injector<TConfig, boost::di::v1_1_0::core::pool<boost::di::v1_1_0::aux::type_list<> >, TDeps ...>::create() const’ is deprecated: creatable constraint not satisfied [-Werror=deprecated-declarations]
 3487 |             create_impl<aux::true_type>(aux::type<type>{});
      |                                                   ^~~~
/build/chipmachine-git/src/chipmachine/src/di.hpp:3481:3: note: declared here
 3481 |   create()
      |   ^~~~~~

Building with with gcc10 fails, so changed -Wdeprecated-declarations from error to warning. Using build flags did not work...

[ghost]

Update: GCC 10 now defaults to -fno-common which gives also build errors. Added -fcommon to CFLAGS as a workaround.