Allow guests to create files from the project panel

Co-authored-by: Nathan Sobo <nathan@zed.dev>

crates/rpc/src/proto.rs

@@ -147,6 +147,9 @@ messages!(
     (BufferReloaded, Foreground),
     (BufferSaved, Foreground),
     (ChannelMessageSent, Foreground),
+    (CreateProjectEntry, Foreground),
+    (CreateProjectEntryResponse, Foreground),
+    (DeleteProjectEntry, Foreground),
     (Error, Foreground),
     (Follow, Foreground),
     (FollowResponse, Foreground),
@@ -194,6 +197,7 @@ messages!(
     (ReloadBuffers, Foreground),
     (ReloadBuffersResponse, Foreground),
     (RemoveProjectCollaborator, Foreground),
+    (RenameProjectEntry, Foreground),
     (SaveBuffer, Foreground),
     (SearchProject, Background),
     (SearchProjectResponse, Background),
@@ -219,6 +223,7 @@ request_messages!(
         ApplyCompletionAdditionalEdits,
         ApplyCompletionAdditionalEditsResponse
     ),
+    (CreateProjectEntry, CreateProjectEntryResponse),
     (Follow, FollowResponse),
     (FormatBuffers, FormatBuffersResponse),
     (GetChannelMessages, GetChannelMessagesResponse),
@@ -257,6 +262,9 @@ entity_messages!(
     ApplyCompletionAdditionalEdits,
     BufferReloaded,
     BufferSaved,
+    CreateProjectEntry,
+    RenameProjectEntry,
+    DeleteProjectEntry,
     Follow,
     FormatBuffers,
     GetCodeActions,