[runtime] Fail When Attempting to `adjust()` Too Many Bytes

[ppenna]

Description

When one attempts to adjust() more bytes than the target buffer has, the runtime panics.

https://github.com/demikernel/runtime/blob/6817e6ecdb7d7117a59f6d315ed419791762fe36/src/memory/buffer/mod.rs#L43-L49

https://github.com/demikernel/runtime/blob/6817e6ecdb7d7117a59f6d315ed419791762fe36/src/memory/buffer/dpdkbuffer.rs#L45-L50

https://github.com/demikernel/runtime/blob/6817e6ecdb7d7117a59f6d315ed419791762fe36/src/memory/buffer/databuffer.rs#L43-L49

Expected Behavior

Instead of panicking, adjust() should not modify the underlying buffer and return Err(Fail).

Further References

• The expected behavior is the same featured by DPDK. For more information refer to: https://doc.dpdk.org/api/rte__mbuf_8h.html#a1bbd752194759ce7b419c4998f2e8651.