gencores-suproj: fix bug in wb_i2c_slave
ctblo_pulse_gen.vhd: add pulse_err_o to signal when a pulse is rejected
conv_regs.vhd: add PMISSE and I2C_ERR bits
top-level: implement PMISSE and I2C_ERR bits and change error LED logic
Signed-off-by: Theodor Stana <t.stana@cern.ch>