crypto/kzg4844: pull in the C and Go libs for KZG cryptography (#27155)

* cryto/kzg4844: pull in the C and Go libs for KZG cryptography

* go.mod: pull in the KZG libraries

* crypto/kzg4844: add basic becnhmarks for ballpark numbers

* cmd, crypto: integrate both CKZG and GoKZG all the time, add flag

* cmd/utils, crypto/kzg4844: run library init on startup

* crypto/kzg4844: make linter happy

* crypto/kzg4844: push missing file

* crypto/kzg4844: fully disable CKZG but leave in the sources

* build, crypto/kzg4844, internal: link CKZG by default and with portable mode

* crypto/kzg4844: drop verifying the trusted setup in gokzg

* internal/build: yolo until it works?

* cmd/utils: make flag description friendlier

Co-authored-by: Martin Holst Swende <martin@swende.se>

* crypto/ckzg: no need for double availability check

* build: tiny flag cleanup nitpick

---------

Co-authored-by: Martin Holst Swende <martin@swende.se>

build/ci.go

@@ -207,9 +207,9 @@ func doInstall(cmdline []string) {
 		csdb := build.MustLoadChecksums("build/checksums.txt")
 		tc.Root = build.DownloadGo(csdb, dlgoVersion)
 	}
-
-	// Disable CLI markdown doc generation in release builds.
-	buildTags := []string{"urfave_cli_no_docs"}
+	// Disable CLI markdown doc generation in release builds and enable linking
+	// the CKZG library since we can make it portable here.
+	buildTags := []string{"urfave_cli_no_docs", "ckzg"}
 
 	// Configure the build.
 	env := build.Env()
@@ -221,7 +221,6 @@ func doInstall(cmdline []string) {
 	if env.CI && runtime.GOARCH == "arm64" {
 		gobuild.Args = append(gobuild.Args, "-p", "1")
 	}
-
 	// We use -trimpath to avoid leaking local paths into the built executables.
 	gobuild.Args = append(gobuild.Args, "-trimpath")
 
@@ -299,7 +298,7 @@ func doTest(cmdline []string) {
 		csdb := build.MustLoadChecksums("build/checksums.txt")
 		tc.Root = build.DownloadGo(csdb, dlgoVersion)
 	}
-	gotest := tc.Go("test")
+	gotest := tc.Go("test", "-tags=ckzg")
 
 	// Test a single package at a time. CI builders are slow
 	// and some tests run into timeouts under load.