hmon: add C++ interface to heartbeat monitor

[arkjedrz]

Add C++ interface to heartbeat monitor.

Resolves #69

[github-actions]

License Check Results

🚀 The license check job ran with the Bazel command:

bazel run //:license-check

Status: ⚠️ Needs Review

Click to expand output

[License Check Output]
Extracting Bazel installation...
Starting local Bazel server (8.4.2) and connecting to it...
INFO: Invocation ID: f009e627-1812-4d32-8061-b849e9d2da7b
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
Loading: 0 packages loaded
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    currently loading: 
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    currently loading: 
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)

Analyzing: target //:license-check (24 packages loaded, 9 targets configured)

Analyzing: target //:license-check (72 packages loaded, 9 targets configured)

Analyzing: target //:license-check (77 packages loaded, 9 targets configured)

Analyzing: target //:license-check (121 packages loaded, 2071 targets configured)

Analyzing: target //:license-check (134 packages loaded, 3370 targets configured)

Analyzing: target //:license-check (140 packages loaded, 7218 targets configured)

Analyzing: target //:license-check (145 packages loaded, 7267 targets configured)

Analyzing: target //:license-check (145 packages loaded, 7267 targets configured)

Analyzing: target //:license-check (148 packages loaded, 9277 targets configured)

Analyzing: target //:license-check (149 packages loaded, 9401 targets configured)

Analyzing: target //:license-check (149 packages loaded, 9401 targets configured)

INFO: Analyzed target //:license-check (150 packages loaded, 9527 targets configured).
[10 / 13] JavaToolchainCompileClasses external/rules_java+/toolchains/platformclasspath_classes; 0s disk-cache, processwrapper-sandbox
[11 / 13] JavaToolchainCompileBootClasspath external/rules_java+/toolchains/platformclasspath.jar; 0s disk-cache, processwrapper-sandbox
INFO: Found 1 target...
Target //:license.check.license_check up-to-date:
  bazel-bin/license.check.license_check
  bazel-bin/license.check.license_check.jar
INFO: Elapsed time: 27.140s, Critical Path: 2.62s
INFO: 13 processes: 9 internal, 3 processwrapper-sandbox, 1 worker.
INFO: Build completed successfully, 13 total actions
INFO: Running command line: bazel-bin/license.check.license_check ./formatted.txt <args omitted>
usage: org.eclipse.dash.licenses.cli.Main [-batch <int>] [-cd <url>]
       [-confidence <int>] [-ef <url>] [-excludeSources <sources>] [-help] [-lic
       <url>] [-project <shortname>] [-repo <url>] [-review] [-summary <file>]
       [-timeout <seconds>] [-token <token>]

[github-actions]

The created documentation from the pull request is available at: docu-html