[cli] Refactor vc project (#8091)

Since the `vc project` command is about to be expanded with 2 new subcommands, I think it makes sense to do a little bit of refactoring. The current `vc project` command is all in one file, with the logic for subcommands nested within if statements. I think the structure of `vc project` should look more like `vc env`, which is consistent with how commands with subcommands look throughout the rest of the codebase.

This PR moves the logic for the `project` subcommands into their own files.

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packages/cli/test/helpers/parse-table.ts

@@ -0,0 +1,19 @@
+export function getDataFromIntro(output: string): {
+  project: string | undefined;
+  org: string | undefined;
+} {
+  const project = output.match(/(?<=Deployments for )(.*)(?= under)/);
+  const org = output.match(/(?<=under )(.*)(?= \[)/);
+
+  return {
+    project: project?.[0],
+    org: org?.[0],
+  };
+}
+
+export function parseTable(output: string): string[] {
+  return output
+    .trim()
+    .replace(/ {1} +/g, ',')
+    .split(',');
+}