fix na handling for ACP when some column have only NAs.

fix unicity of rownames in feature table
handle 0 in ponderation factor > NA

click on rows of merged table allows user to filter outliers
close #4

boxplot: add button to plot all conditions (even with no values) or not

few improvements for #3
new widget to print up to 4 boxplot per pdf page
boxplot in interactive plotly
add tooltip to see outlier samples in boxplot
add labels to see outlier samples in boxplot

misc:
adjust column filters

add utils
improve NA management

add information about input table dimension, features/samples omitted for acp
change project name
update readme

Normalization ommited first columns: fixed
Crash when ACP table have lines whith sd = 0
Crash when ACP table have features with NA in all samples
Boxplot with plotly interactivity (zoom + tooltip)
Handles features with only NA in wilcox tests (boxplot tab)

render datable
exclude outliers

improve boxplot viz
fix tests

concat features_type_unite for rownames (special characters should be an issue)
alert for ACP with non unique features

add alerts / notifications

ytitle boxplot