feat: add `--allow-import` flag (#25469)

This replaces `--allow-net` for import permissions and makes the
security sandbox stricter by also checking permissions for statically
analyzable imports.

By default, this has a value of
`--allow-import=deno.land:443,jsr.io:443,esm.sh:443,raw.githubusercontent.com:443,gist.githubusercontent.com:443`,
but that can be overridden by providing a different set of hosts.

Additionally, when no value is provided, import permissions are inferred
from the CLI arguments so the following works because
`fresh.deno.dev:443` will be added to the list of allowed imports:

```ts
deno run -A -r https://fresh.deno.dev
```

---------

Co-authored-by: David Sherret <dsherret@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/specs/info/json/info_json.out b/tests/specs/info/json/info_json.out
new file mode 100644
index 000000000..607489ca3
--- /dev/null
+++ b/tests/specs/info/json/info_json.out
@@ -0,0 +1,9 @@
+{
+  "version": 1,
+  "denoDir": "[WILDCARD]",
+  "modulesCache": "[WILDCARD]deps",
+  "npmCache": "[WILDCARD]npm",
+  "typescriptCache": "[WILDCARD]gen",
+  "registryCache": "[WILDCARD]registries",
+  "originStorage": "[WILDCARD]location_data"
+}