CRAN release v10.0.0

BREAKING CHANGES

Backwards incompatible changes that are the reason why the major
version has been incremented.

• Redesigned the S4 class SimInf_pfilter and the interface to using
  the bootstrap filtering algorithm, see the documentation for the
  pfilter function. Moreover, a variant of the split-step solver
  (ssm) was added to efficiently simulate multiple particles in one
  trajectory (mssm).

• The slot replicates was added to the SimInf_model. The slot
  replicates holds the number of replicates of each node in a
  model. This new functionality is used by the bootstrap filtering
  algorithm.

CHANGES OR IMPROVEMENTS

• Added functionality to fit models to time series data using the
  Particle Markov Chain Monte Carlo ('PMCMC') algorithm of Andrieu and
  others (2010)
  doi:10.1111/j.1467-9868.2009.00736.x.

• The model parser (mparse) now allows the global data vector
  gdata to have parameters without a name.

• On Windows, use gsl from the system, via pkg-config when available.

• Renamed the abc function argument ninit to n_init.

• Renamed the abc function argument npart to n_particles.

• When using use_enum=TRUE in mparse, the enumeration constants
  N_COMPARTMENTS_U and N_COMPARTMENTS_V will be automatically
  added to facilitate indexing 'u' and 'v' in the C code.
  Additionally, enumeration values are added to all enumeration
  constants.

• The plot function of a SimInf_model object now accepts a log
  argument, see the documentation. Thanks to Alfredo Acosta in PR #56.

• Static code analysis of the C codebase has been performed using the
  clang-tidy and cppcheck tools in order to improve code.

• The GNU Indent program has been used to style the C code for
  consistency and readability.

• Add a function to calculate the Lambert W0 function using the GNU
  Scientific Library (GSL).