US TV maker Vizio is seeking damages totaling $115 million from its estranged partner LeEco – signaling more shaky times ahead for shareholders in the struggling Chinese electronics manufacturer. The warning signs were there from the offset, but the allegations are deeper and darker than initially suspected. Just one year ago, Vizio and LeEco were ready to embrace a $2 billion merger that the two believed would form a powerhouse in TV and media in the US, but that quickly fell through the floor and this week Vizio has filed two lawsuits against its Chinese ex for derailing the relationship amid some shady business practices. Vizio says it has only received $40 million of the $100 million termination fee that…