seq =1 in first message

[MrBoboGet]

The DAP protocol (https://microsoft.github.io/debug-adapter-protocol/specification) requires that the first message has sequence number equal to 1. This requirement does not seem to be widely enforced however, but it does create a problem when using the latest version of lldb-dap directly, as it simply aborts the connection, making it completely unusable.

[puremourning]

This change is 

[puremourning]

@mergifyio rebase

[mergify[bot]]

rebase

☑️ Nothing to do, the required conditions are not met

• [ ] any of:
  • [ ] #commits > 1 [📌 rebase requirement]
  • [ ] #commits-behind > 0 [📌 rebase requirement]
  • [ ] -linear-history [📌 rebase requirement]
• [X] -closed [📌 rebase requirement]
• [X] -conflict [📌 rebase requirement]
• [X] queue-position = -1 [📌 rebase requirement]

[puremourning]

Oh hey, thanks for this. Sorry somehow I completely missed it.

It LGTM

[mergify[bot]]

Thanks for sending a PR!