476 enhancement add mean plots with correct blq rule

[KOBANAK]

Issue

Closes #476

Description

Create mean plots for both LOG and LIN scale

Definition of Done

The requirements for the feature to be complete:

• mean plots created using tern g_lineplot function, handling LOG and LIN scales
• Correct implementation of BLQ rule to display timepoints
• flexible summary statistics selection
• flexible whisker selection

How to Test:

Try both main dummy data set (with no AVALC) and the example-duplicates-ADNCA in test folder, which contains AVALC. In this file, I have added BLQ values for all NFRLT = 4 in the first dose, so these should be removed in the TLG mean plot.
Check that the mean linear plot renders and that the options are working as expected.

Contributor checklist

• Code passes lintr checks
• Code passes all unit tests
• New logic covered by unit tests
• New logic is documented
• Package version is incremented

Notes to reviewer

@js3110 taken over December 23
/!\ On the meanplots, points from a same group were not linked to each other, geom_line within g_lineplot does not seem to work well when plotly obejct is created, to solve this I have just explicitly added a geom_line call, but not sure if this is the best approach!
Test the BLQ handling in mean plots with test-duplicate-ADNCA.csv

[Shaakon35]

@KOBANAK Might be conflicting with #540 when it will be merged, be careful

[Gero1999]

Hey @KOBANAK I need more context to understand the original issue, what do you mean with

Correct implementation of BLQ rule to display timepoints

[KOBANAK]

Hey @KOBANAK I need more context to understand the original issue, what do you mean with

Correct implementation of BLQ rule to display timepoints
Hey @Gero1999 so a timepoint would be retained for plotting only if 50% or more of the samples of this group are non BLQ samples.