Make MIXED and CUSTOM also inputs

[whatmusicreallyis]

MIXED and CUSTOM inputs

Turn the MIXED and CUSTOM fields also in inputs (currently working only as outputs).
Adjust the behavior of their additional input-fields/check-boxes.

MIXED:

1. output:

• The mult text input should be empty by default. (Output of MIXED will remain unpopulated until user inputs the mult.) Orange border could indicate need for user input.
• User inputs a ratio coming from ASC or DESC. Algorithm finds where it came from, then divides all values from the detected series by the inputted value.
• Changing the mult text input will only affect output of MIXED, without re-writing all other fields. (Only when MIXED is modified by user will other fields re-write.)

2. input:

• When user inputs series of fractions in MIXED, algorithm will fill the mult text input automatically, no matter current state/value:
• output of mult is done by place value. It is my arbitrary choice to use values from the ascending series. (Example: if user inputs 3/4, 1/1, 3/2 in the MIXED field, algorithm outputs ASC 1/1, 4/3, 2/1 and chooses 4/3 to fill in the "mult", because this is the 2nd value from left in ASC which corresponds to 1/1 being 2nd from left in MIXED.)

CUSTOM:

1. output:

• RefRat, Value and Asc/Desc/Mixed should have no value / be unchecked by default. (Output of CUSTOM will remain unpopulated until user inputs RefRat & Value and chooses between Asc/Desc/Mixed.) Orange border could indicate need for user input.
• Output algorithm currently works as desired. (Calculations are done properly. Changing the RefRat, Value and Asc/Desc/Mixed only affects output of CUSTOM, without re-writing all other fields. This behavior should remain unchanged.)

2. input:

• When user inputs series of numbers (with up to 3 decimals) in CUSTOM, algorithm will perform the same operations as when ASCI is used for input. Also it will fill/check the RefRat, Value and Asc/Desc/Mixed automatically, no matter current state/value:
  Output of RefRat will always be set to the value 1/1.
  Output of Value will be set to the first (lowest) term inputted in CUSTOM.
  Output of Asc/Desc/Mixed will be set to Asc.