Generator: replace <boost/random.hpp> with <random>

[afabri]

Summary of Changes

Replace boost:: version with std:: version.

• replace boost:: with std:: for binomial_distribution, geometric_distribution, uniform_real_distribution
• replace boost::rand48 with std::mt19937
• remove boost::variate_generator

We still have from boost: random_number_generator, uniform_int, uniform_small_int, uniform_real, uniform_01, boost::lagged_fibonacci607 ,

Release Management

• Affected package(s): Generator
• Issue(s) solved (if any): fix warnings in the testsuite
• License and copyright ownership: unchanged

[lrineau]

Unless there is an important need, this PR will be for CGAL-6.1.x.

[lrineau]

Are there consequences in the CGAL documentation?

[afabri]

@janetournois do you know why you use the boost::lagged_fibonacci607 generator

[afabri]

Are there consequences in the CGAL documentation?

Yes, And dealt with for example in Random.h

[sloriot]

Several full red lines in CGAL-6.0-Ic-285 because of this PR.

[sloriot]

@afabri did you check the red lines?