Use CppyyKernel to run the notebooks instead of Xeus-cling.

The notebooks have been modified to go along this change; I tried as much as possible not to introduce changes in the actual content of the notebooks (minus some stylistic changes: initialization through braces replaced some initialization by parens, as the braces require the cppyy.cppdef magic the change seemed organic enough).

The main changes are:

• Many references to Coliru have been suppressed and replaced with code run in a cell with clang magic.
• Some cppyy related magics have been added for specific cells that require it.
• The Docker image has been updated to reflect this.
• Binder has been completely modified.
• README and comments have been updated to suppress references to Xeus-cling and provide up-to-date information regarding installation.

Closes #101 (closed).

added C++ Jupyter labels

assigned to @sgilles

Ok if done on a separated PR, but changelog should also be updated

Thanks for the review! I'll answer your comment tomorrow

added 1 commit

• c4126073 - #101 (closed) Remove Cppyy implementation detail as suggested by Vincent.

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added 1 commit

• 551d5406 - #101 (closed) Add back a cell removed by mistake (thanks Vincent!)

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resolved all threads

approved this merge request

merged

mentioned in commit 9ca82e76