Merge branch 'inc-rename' into 'main'

Rename `.inc` and other included files to end in `.rs`

Closes #381

See merge request tpo/core/arti!645

crates/tor-guardmgr/src/fallback.rs

@@ -111,7 +111,7 @@ pub(crate) fn default_fallbacks() -> Vec<FallbackDirBuilder> {
 
         bld
     }
-    include!("fallback_dirs.inc")
+    include!("../data/fallback_dirs.rs")
 }
 
 impl tor_linkspec::ChanTarget for FallbackDir {

crates/tor-proto/src/crypto/cell.rs

@@ -503,7 +503,7 @@ mod test {
         const SEED: &[u8;108] = b"'You mean to tell me that there's a version of Sha-3 with no limit on the output length?', said Tom shakily.";
 
         // These test vectors were generated from Tor.
-        let data: &[(usize, &str)] = &include!("../../testdata/cell_crypt.data");
+        let data: &[(usize, &str)] = &include!("../../testdata/cell_crypt.rs");
 
         let mut cc_out = OutboundClientCrypt::new();
         let mut cc_in = InboundClientCrypt::new();