Bring `vast-repl` up to date.

[lkorenc]

Update vast-repl to use newer APIs. Backport some forgotten patches in the experimental branches - some of these features do not work yet, but there is no reason not to include them as we are already developing tower and we will need them in some form eventually.

[github-actions[bot]]

Cpp-Linter Report :warning:

Some files did not pass the configured checks!

clang-format reports: 11 file(s) not formatted

- include/vast/repl/cli.hpp - include/vast/repl/command.hpp - include/vast/repl/command_base.hpp - include/vast/repl/common.hpp - include/vast/repl/config.hpp - include/vast/repl/pipeline.hpp - lib/vast/Frontend/Action.cpp - tools/vast-repl/cli.cpp - tools/vast-repl/codegen.cpp - tools/vast-repl/command.cpp - tools/vast-repl/config.cpp

clang-tidy reports: 6 concern(s)

- **include/vast/repl/pipeline.hpp:9:27:** error: [clang-diagnostic-error] > use of undeclared identifier 'std' ```hpp 9 | using pass_name = std::string; | ^ ``` - **include/vast/repl/pipeline.hpp:10:30:** error: [clang-diagnostic-error] > use of undeclared identifier 'std' ```hpp 10 | using passname_ref = std::string_view; | ^ ``` - **include/vast/repl/pipeline.hpp:12:9:** error: [clang-diagnostic-error] > use of undeclared identifier 'std' ```hpp 12 | std::vector< pass_name > passes; | ^ ``` - **include/vast/repl/pipeline.hpp:12:22:** error: [clang-diagnostic-error] > use of undeclared identifier 'pass_name' ```hpp 12 | std::vector< pass_name > passes; | ^ ``` - **include/vast/repl/pipeline.hpp:15:9:** error: [clang-diagnostic-error] > use of undeclared identifier 'std' ```hpp 15 | std::vector< passname_ref > make_snapshot_after = {}; | ^ ``` - **include/vast/repl/pipeline.hpp:15:22:** error: [clang-diagnostic-error] > use of undeclared identifier 'passname_ref' ```hpp 15 | std::vector< passname_ref > make_snapshot_after = {}; | ^ ```

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