add tracing metrics layer for dependency logging (#4979)

* add metrics layer

* add metrics

* simplify getting the target

* make clippy happy

* fix typos

* unify deps under workspace

* make import statement shorter, fix typos

* enable warn by default, mark flag as deprecated

* do not exit on error when initializing logging fails

* revert exit on error

* adjust bootnode logging

* use target as is by default

* make libp2p events register correctly

* adjust repilcated cli help

* turn on debug logs by default, remove deprecation warning

* suppress output (#5)

---------

Co-authored-by: Age Manning <Age@AgeManning.com>

book/src/help_general.md

@@ -13,8 +13,8 @@ FLAGS:
         --disable-malloc-tuning          If present, do not configure the system allocator. Providing this flag will
                                          generally increase memory usage, it should only be provided when debugging
                                          specific memory allocation issues.
-    -l                                   Enables environment logging giving access to sub-protocol logs such as discv5
-                                         and libp2p
+    -l                                   DEPRECATED Enables environment logging giving access to sub-protocol logs such
+                                         as discv5 and libp2p
     -h, --help                           Prints help information
         --log-color                      Force outputting colors when emitting logs to the terminal.
         --logfile-compress               If present, compress old log files. This can help reduce the space needed to