feat: cache lookup blueprint entries in solving phase

[gbotrel]

See #898 .

Adds blueprint.Reset() and BlueprintLookup now maintains a cache of resolved entries during solving time.

[ivokub]

LGTM.

[github-actions]

📦 github.com/consensys/gnark/std/math/emulated
❌ TestInverse 0s

❌ TestInverse/Goldilocks/limb=64 0s

❌ TestInverse/Goldilocks/limb=64/bn254 0s

panic: test timed out after 30m0s
running tests:
	TestInverse (30m0s)
	TestInverse/Goldilocks/limb=64 (30m0s)
	TestInverse/Goldilocks/limb=64/bn254 (30m0s)

goroutine 306 [running]:
testing.(*M).startAlarm.func1()
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:2259 +0x3b9
created by time.goFunc
	/opt/hostedtoolcache/go/1.21.3/x64/src/time/sleep.go:176 +0x2d

goroutine 1 [chan receive, 29 minutes]:
testing.(*T).Run(0xc0000a3d40, {0xeb2f0c?, 0x51fadc?}, 0xf17aa0)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1649 +0x3c8
testing.runTests.func1(0x155cd00?)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:2054 +0x3e
testing.tRunner(0xc0000a3d40, 0xc000163c48)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1595 +0xff
testing.runTests(0xc000153180?, {0x15538c0, 0x1d, 0x1d}, {0x4182bf?, 0xc000163d08?, 0x155b3e0?})
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:2052 +0x445
testing.(*M).Run(0xc000153180)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1925 +0x636
main.main()
	_testmain.go:109 +0x19c

goroutine 123 [chan receive, 29 minutes]:
testing.(*T).Run(0xc00041a4e0, {0xc000438120?, 0xc0004266d0?}, 0xc00040a6c0)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1649 +0x3c8
github.com/consensys/gnark/test.(*Assert).Run(0xc000426718, 0xc00040a6b0, {0xc000426728?, 0x39?, 0x5ad?})
	/home/runner/work/gnark/gnark/test/assert.go:64 +0x99
github.com/consensys/gnark/std/math/emulated.testInverse[...](0xc00041a4e0)
	/home/runner/work/gnark/gnark/std/math/emulated/element_test.go:403 +0x107
github.com/consensys/gnark/std/math/emulated.TestInverse(0xc00062f2c0?)
	/home/runner/work/gnark/gnark/std/math/emulated/element_test.go:392 +0x25
testing.tRunner(0xc00041a4e0, 0xf17aa0)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1595 +0xff
created by testing.(*T).Run in goroutine 1
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1648 +0x3ad

goroutine 124 [chan receive, 29 minutes]:
testing.(*T).Run(0xc00041a680, {0xc000404f40?, 0xc000087cc8?}, 0xc00040a760)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1649 +0x3c8
github.com/consensys/gnark/test.(*Assert).Run(0xc00040a720, 0xc0004065d0, {0xc000087e08?, 0x151232c?, 0x2?})
	/home/runner/work/gnark/gnark/test/assert.go:64 +0x99
github.com/consensys/gnark/test.(*Assert).CheckCircuit(0xc000489160?, {0x1006e00?, 0xc0004362d0}, {0xc000087e88, 0x1, 0x1})
	/home/runner/work/gnark/gnark/test/assert_checkcircuit.go:39 +0x168
github.com/consensys/gnark/std/math/emulated.testInverse[...].func1()
	/home/runner/work/gnark/gnark/std/math/emulated/element_test.go:409 +0x2bd
github.com/consensys/gnark/test.(*Assert).Run.func1(0xc00041a680)
	/home/runner/work/gnark/gnark/test/assert.go:66 +0xa7
testing.tRunner(0xc00041a680, 0xc00040a6c0)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1595 +0xff
created by testing.(*T).Run in goroutine 123
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1648 +0x3ad

goroutine 125 [runnable]:
github.com/consensys/gnark/test.(*engine).ConstantValue(0xc00043c0b0, {0xea4f80?, 0xc000489200?})
	/home/runner/work/gnark/gnark/test/engine.go:570 +0x48
github.com/consensys/gnark/std/math/emulated.(*Field[...]).constantValue(0x101c840, 0xc000436500)
	/home/runner/work/gnark/gnark/std/math/emulated/field.go:223 +0xa8
github.com/consensys/gnark/std/math/emulated.(*Field[...]).enforceWidthConditional(0x101c840, 0xc000436500)
	/home/runner/work/gnark/gnark/std/math/emulated/field.go:170 +0x3b
github.com/consensys/gnark/std/math/emulated.(*Field[...]).Reduce(0x101c840?, 0xc000436500)
	/home/runner/work/gnark/gnark/std/math/emulated/field_ops.go:253 +0x30
github.com/consensys/gnark/std/math/emulated.(*Field[...]).reduceAndOp(0x101c840?, 0xc000655b50, 0xc000655b38, 0xc000436500, 0x0)
	/home/runner/work/gnark/gnark/std/math/emulated/field_ops.go:404 +0x132
github.com/consensys/gnark/std/math/emulated.(*Field[...]).Inverse(0x10152d8?, 0xc00043c0b0?)
	/home/runner/work/gnark/gnark/std/math/emulated/field_ops.go:44 +0x7b
github.com/consensys/gnark/std/math/emulated.(*InverseCircuit[...]).Define(0x1008e00, {0x10152d8, 0xc00043c0b0?})
	/home/runner/work/gnark/gnark/std/math/emulated/element_test.go:386 +0x65
github.com/consensys/gnark/test.IsSolved({0x1006e00, 0xc0004362d0}, {0x1006e00, 0xc000436320}, 0xc000489480, {0x0, 0x0, 0x0?})
	/home/runner/work/gnark/gnark/test/engine.go:139 +0x4cf
github.com/consensys/gnark/test.(*Assert).CheckCircuit.func1(0x0?)
	/home/runner/work/gnark/gnark/test/assert_checkcircuit.go:49 +0x29b
github.com/consensys/gnark/test.(*Assert).Run.func1(0xc00041a820)
	/home/runner/work/gnark/gnark/test/assert.go:66 +0xa7
testing.tRunner(0xc00041a820, 0xc00040a760)
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1595 +0xff
created by testing.(*T).Run in goroutine 124
	/opt/hostedtoolcache/go/1.21.3/x64/src/testing/testing.go:1648 +0x3ad