hal/sm_io/*/fmc130m_4ch/*: add ADC delay functions

The ADC channels must be calibrated prior to acquire
data, as each ADC channel has a different propagation
delay inside the FPGA. These delays are static at synthesis
time.
libclient/rw_param_client.*: add 2-parameter write function

This function will allow constructing messages that have 3
frames, but not the RW one. Instead, it can be any information
used by the server function.
libclient/bpm_client.*: add ADC delay functions
examples/adc_dly.c: add ADC delay example