matrix th_ultra2ultra, th_jac2jac (#228)

* matrix th_ultra2ultra

* leg2chebu tests

* jac2jac matrix

* support composing plans in Toeplitz-Hankel

* Mape type stable via vector plans

* prepare for integer increments

* integer increments with vectors

* fix complexity of integer increment

* JacJacPlan remembers dims

* matrix raising

* Fix Chebyshev transform

* higher th_ultra2ultra

* no-alloc jacobi integer step

* fix tests

* fix nearest integer

Author: dlfivefifty

Project.toml

@@ -1,6 +1,6 @@
 name = "FastTransforms"
 uuid = "057dd010-8810-581a-b7be-e3fc3b93f78c"
-version = "0.15.8"
+version = "0.15.9"
 
 [deps]
 AbstractFFTs = "621f4979-c628-5d54-868e-fcf4e3e8185c"