main: switch command parsing to use clap

Partially revert 111225a2a5
and add the new dbus and pvpanic arguments.

As we are switching back to clap observe the following changes.

A few examples:

1. `-v -v -v` needs to be written as`-vvv`
2. `--disk D1 --disk D2` and others need to be written as `--disk D1 D2`.
3. `--option value` needs to be written as `--option=value.`

Change integration tests to adapt to the breaking changes.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@intel.com>

vmm/Cargo.toml

@@ -24,6 +24,7 @@ bitflags = "2.4.1"
 block = { path = "../block" }
 blocking = { version = "1.3.0", optional = true }
 cfg-if = "1.0.0"
+clap = "4.3.11"
 devices = { path = "../devices" }
 epoll = "4.3.3"
 event_monitor = { path = "../event_monitor" }