Treat data links even more like symlinks, allow crossing using `/` #149

Job	Run time
🔍 Files Changed / Changed Files	8s
⚙️ Checks / Engine (GraalVM CE) (linux, amd64)	14m 7s
⚙️ Checks / JVM Tests (GraalVM CE) (linux, amd64)	16m 50s
⚙️ Checks / Engine (GraalVM CE) (windows, amd64)	15m 32s
⚙️ Checks / JVM Tests (GraalVM CE) (windows, amd64)	44m 9s
⚙️ Checks / Standard Library Tests (GraalVM CE) (linux, amd64)	32m 36s
⚙️ Checks / Standard Library Tests (GraalVM CE) (windows, amd64)	26m 22s
⚙️ Checks / Verify License Packages (linux, amd64)	2m 17s
⚙️ Checks (Optional) / Engine (GraalVM CE) (macos, amd64)	43m 52s
⚙️ Checks (Optional) / JVM Tests (GraalVM CE) (macos, amd64)	53m 36s
⚙️ Checks (Optional) / Standard Library Tests (GraalVM CE) (macos, amd64)	44m 19s
Engine Required Checks	1s
	4h 53m 49s

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