'scons help' reports setting values in terms of 'yes' and 'no' rather than
boolean flags that are otherwise used internally. This commit ensures that
documentation for the newly added flag 'legacy-rate-constants' is
consistent with this convention; accordingly, the setting is either enabled
or disabled.

Compilation with GNU g++ currently raises the following warning.

warning: 'nSolnValues' may be used uninitialized in this function [-Wmaybe-uninitialized]

The warning is resolved by providing an (invalid) initial value; the
value is overwritten by a subsequent (pre-existing) if-else tree.

Resolve GNU g++ warning:

warning: unused variable 'p' [-Wunused-variable]

* Use consistent interface based on Array2D
* Use column-major consistently in internal calculations
* Deprecate Chebyshev::coeffs and Chebyshev::setup

Several internal methods defined for C1, C2, C3, and C_AnyN are unused;
as there are no simple accessor methods defined in StoichManagerN,
deprecation appears not to be required.

The 'Kinetics::finalizeSetup' method executes code after all reactions
have been added. The new flag 'finalize' is added to 'Kinetics::addReaction'
which determines whether 'finalizeSetup' is executed. While the default
is 'true', imports within 'KineticsManager' use 'addReaction' with the
flag set to 'false'.

as Kinetics::m_irrevProductManager is only used in conjunction with
Kinetics::m_revProductManager, a new Kinetics::m_productManager provides
for simpler code.

Deprecate Tmin/Tmax, Pmin/Pmax as well as constructors to use
std::pair<double,double> input/output

Deprecate Kinetics.*_stoich_coeffs() method in favor of property:
Behavior will change after Cantera 2.6; for new behavior, new properties
Kinetics.*_stoich_coefficients are implemented

This commit unifies parameter handling of Plog rate setters and
getters to use std::multimap<...>.

This change leverages the default internal storage format in Eigen (CSC)

Update nomenclature for previously introduced finalizeSetup method;
new names are Kinetics::resizeReactions and StoichManagerN::resizeCoeffs