feat: update user configuration example and add development package support

- Enhanced the user.depot.toml.example file with additional comments and options for user-local preferences.
- Bumped version from 0.35.0 to 0.35.1 in meson.build.
- Introduced a new option for DEPOT_DEVELOPMENT_PACKAGE in meson_options.txt.
- Added functions to handle the requested development package in build_options.rs.
- Updated various builder files (autotools.rs, cmake.rs, custom.rs, meson.rs, perl.rs) to support passing build flags.
- Implemented checks for the required development package during source builds in commands.rs and commands/build_cmd.rs.
- Added tests to ensure the correct behavior of development package requirements and source build warnings.
- Modified manual source handling in source/mod.rs to validate local manual sources before proceeding with builds.
- Updated cargo build and test scripts to accept a new development package argument.
- Added VSCode settings to disable automatic configuration on open.

src/builder/autotools.rs

@@ -134,7 +134,9 @@ pub fn build(
             let expanded = expand_configure_arg(spec, arg, &env_vars);
             configure_cmd.arg(expanded);
         }
-        for arg in crate::builder::static_build_args_for(crate::package::BuildType::Autotools)? {
+        for arg in
+            crate::builder::static_build_args_for(crate::package::BuildType::Autotools, flags)?
+        {
             add_auto_configure_arg_if_supported(&mut configure_cmd, help_text.as_deref(), &arg);
         }
 
@@ -444,7 +446,9 @@ pub(crate) fn ensure_host_build(
             let expanded = expand_configure_arg(&host_spec, arg, &env_vars);
             configure_cmd.arg(expanded);
         }
-        for arg in crate::builder::static_build_args_for(crate::package::BuildType::Autotools)? {
+        for arg in
+            crate::builder::static_build_args_for(crate::package::BuildType::Autotools, flags)?
+        {
             add_auto_configure_arg_if_supported(&mut configure_cmd, help_text.as_deref(), &arg);
         }