chore(binding-mbus): enable strict type checking

[danielpeintner]

another one of #758

@LennyHEVS @Chxresubles can you take a look?
We are enabling strict checking for all node-wot packages

[danielpeintner]

I tried to update the code, please have a look...

[relu91]

Since mbus code is pretty similar structurally to Modbus I noticed some dissimilarities. I think we can align the two implementations, but feel free to prove me wrong.

[danielpeintner]

Since mbus code is pretty similar structurally to Modbus I noticed some dissimilarities. I think we can align the two implementations

I wasn't aware that those two bindings are so similar. With my latest commit be3d6de I tried to align the code. Please have another look.

[codecov]

Codecov Report

Patch coverage: 46.66% and project coverage change: -0.26% ⚠️

Comparison is base (0e6e117) 75.38% compared to head (4cc0978) 75.12%.
Report is 9 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1059      +/-   ##
==========================================
- Coverage   75.38%   75.12%   -0.26%     
==========================================
  Files          80       80              
  Lines       15443    15498      +55     
  Branches     1477     1485       +8     
==========================================
+ Hits        11641    11643       +2     
- Misses       3766     3819      +53     
  Partials       36       36              

Files Changed	Coverage Δ
packages/binding-mbus/src/mbus-connection.ts	70.55% <39.39%> (-3.76%)	⬇️
packages/binding-mbus/src/mbus-client.ts	63.22% <66.66%> (+1.15%)	⬆️

... and 6 files with indirect coverage changes

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[relu91]

And with this, we fix #758.