Build tags and bug fixes. Now 100% more TinyGo friendly

What's Changed

• round: add Round and RoundToEven pure Go implementations by @soypat in #31
• math/Tan: add Tangent function by @soypat in #37
• tests: fix remaining failing cases by @soypat in #32
• sqrt stubs fixed. usable in tinygo now! by @soypat in #33
• guard Exp and Exp2 stubs by @soypat in #35
• guard remainder stubs by @soypat in #36
• guard log stubs by @soypat in #34
• add arch vet tests. fix arm,arm64 duplicated decl by @soypat in #41
• Don't try to run vet on tinygo, which does not yet support fork/exec by @dkegel-fastly in #43
• fix recursive ARM asm call to remainder; match archRemainder for ARM64 by @soypat in #48

New Contributors

• @dkegel-fastly made their first contribution in #43

Full Changelog: v1.10.1...v1.11