[FL-3925] JS views finished (#4155)

* js: value destructuring and tests

* js: temporary fix to see size impact

* js_val: reduce code size 1

* i may be stupid.

* test: js_value args

* Revert "js: temporary fix to see size impact"

This reverts commit f51d726dbafc4300d3552020de1c3b8f9ecd3ac1.

* pvs: silence warnings

* style: formatting

* pvs: silence warnings?

* pvs: silence warnings??

* js_value: redesign declaration types for less code

* js: temporary fix to see size impact

* style: formatting

* pvs: fix helpful warnings

* js_value: reduce .rodata size

* pvs: fix helpful warning

* js_value: reduce code size 1

* fix build error

* style: format

* Revert "js: temporary fix to see size impact"

This reverts commit d6a46f01794132e882e03fd273dec24386a4f8ba.

* style: format

* js: move to new arg parser

* style: format

* feat: all js views done

* js, toolbox: generalize string owning

* toolbox: silence pvs warning

---------

Co-authored-by: hedger <hedger@nanode.su>
Co-authored-by: hedger <hedger@users.noreply.github.com>

lib/toolbox/SConscript

@@ -29,6 +29,7 @@ env.Append(
         File("float_tools.h"),
         File("value_index.h"),
         File("tar/tar_archive.h"),
+        File("str_buffer.h"),
         File("stream/stream.h"),
         File("stream/file_stream.h"),
         File("stream/string_stream.h"),