Primitive base function IDs

Primitive functions are exposed through BasicFunctionId. Numeric IDs and names can both be used in YAML fields such as base_functions, composition_base_functions, and component base_function entries.

ID	Name	Notes
1	Sphere	Unimodal, smooth, separable.
2	Ellipsoidal	Unimodal, high-conditioned.
3	SumDifferentPowers	Unimodal, variable powers.
4	BuecheRastrigin	Multimodal Rastrigin-family landscape.
5	LinearSlope	Unimodal sloped landscape.
6	AttractiveSector	Unimodal, asymmetric sector structure.
7	StepEllipsoidal	Unimodal stepped high-conditioned landscape.
8	StepRastrigin	Multimodal stepped Rastrigin-family landscape.
9	Rosenbrock	Unimodal valley, nonseparable.
10	Ackley	Multimodal.
11	Rastrigin	Multimodal, separable in primitive coordinates.
12	Griewank	Multimodal.
13	Schwefel	Multimodal.
14	SharpRidge	Unimodal ridge.
15	Weierstrass	Multimodal, rugged.
16	SchafferF7	Multimodal.
17	SchafferF7Cond1000	Multimodal, conditioned Schaffer variant.
18	GriewankRosenbrock	Multimodal hybrid.
19	Gallagher21	Multimodal peaks.
20	Katsuura	Multimodal.
21	LunacekBiRastrigin	Multimodal double-funnel Rastrigin-family landscape.
22	Zakharov	Unimodal.
23	Levy	Multimodal.
24	Michalewicz	Multimodal.
25	DixonPrice	Unimodal.
26	BentCigar	Unimodal, high-conditioned.
27	HappyCat	Multimodal/nonconvex BBOB-style function.
28	HGBat	Unimodal/nonconvex BBOB-style function.
29	HCF	Unimodal composition-style primitive.
30	SchafferF6	Multimodal.
31	Step	Unimodal stepped function.
32	Quartic	Unimodal quartic function.
33	Exponential	Unimodal exponential landscape.
34	StyblinskiTang	Multimodal.