Implement encoders support for Arrays and multi-dimensional Arrays.

[AlinMoldovean]

• Updates for handling fields with multi-dimensional values. e.g. Complex types with 2D array members are not decoded correctly #920
• JsonEncoder/Decoder fix for non reversible encoding of NodeId, ExpandedNodeId and QualifiedName

[lgtm-com]

This pull request introduces 8 alerts and fixes 2 when merging 58bf1b9 into 1d5e87c - view on LGTM.com

new alerts:

• 5 for Useless assignment to local variable
• 2 for Dereferenced variable may be null
• 1 for Dereferenced variable is always null

fixed alerts:

• 1 for Useless assignment to local variable
• 1 for Dereferenced variable may be null

[lgtm-com]

This pull request introduces 2 alerts and fixes 2 when merging cfba7ea into 1d5e87c - view on LGTM.com

new alerts:

• 1 for Useless assignment to local variable
• 1 for Dereferenced variable may be null

fixed alerts:

• 1 for Useless assignment to local variable
• 1 for Dereferenced variable may be null

[lgtm-com]

This pull request fixes 2 alerts when merging 36e4323 into 1d5e87c - view on LGTM.com

fixed alerts:

• 1 for Useless assignment to local variable
• 1 for Dereferenced variable may be null

[mregen]

this is great... how about few more cases with Json encoder test? How is code coverage for the new code?

[AlinMoldovean]

this is great... how about few more cases with Json encoder test? How is code coverage for the new code?

The added tests have coverage for new ReadArray()/WriteArray() methods.
Some more Json/BinaryEncoder tests are prepared in the upcoming PubSub update for MQTT.

[lgtm-com]

This pull request fixes 2 alerts when merging 36bb5bc into 1d5e87c - view on LGTM.com

fixed alerts:

• 1 for Useless assignment to local variable
• 1 for Dereferenced variable may be null